You have a bid due and a set of elevations with curtain wall, storefront and interior glazing. We are a glazing estimating company that takes off the Division 08 scope line by line, prices it with ZIP-code-adjusted material and labor, and returns an Excel and PDF estimate organized by CSI MasterFormat within 24–48 hours for most projects. Rush turnaround is available when your bid date is closer than that.
- Deliverable
- Excel estimate + marked-up PDF plans
- Organized by
- CSI MasterFormat section
- Turnaround
- 24–48 hours for most projects
- Pricing
- ZIP-code-adjusted material and labor pricing
- Software
- Bluebeam Revu, PlanSwift, RSMeans data
Our glass and glazing estimating process starts with an elevation takeoff. We measure glazed area in square feet by elevation, separating vision glass, spandrel glass and opaque panels. Frame is taken off in linear foot for mullions, horizontals, verticals and jamb conditions, then converted to the fabricator's stock lengths. Doors, hardware sets, lites, mirrors and fire-rated assemblies are counted each. Embeds, anchors and structural steel at curtain wall are taken off separately. We use Bluebeam Revu, PlanSwift and RSMeans data to ensure accuracy and consistency.
We also provide glass estimating services for contractors who need a second set of eyes on a package. Our glass glazing takeoff covers curtain wall estimating and storefront, and we flag items that commonly fall outside the base bid, such as insulated glass unit upgrades, tempered glass at doors, heat-strengthened glass at spandrels, aluminum framing finishes, glazing pocket dimensions, setting block counts and AAMA 501 test requirements. We reference NFRC 100 for U-factor and SHGC values, and we note where IGCC or local energy code amendments may change the specified assembly. For interior work, we take off section 08 41 13 aluminum-framed entrances and section 08 81 00 glazing, and for curtain wall we work from section 08 44 00.
This service sits under our Openings Estimating Services group, so door and hardware takeoff can be priced on the same sheet as the glazing. If your project is in a state where labor rates move the number, we also produce Texas, California, Florida, New York and North Carolina estimates.
Send the drawings through our estimate request page and we will confirm scope before we start. We return marked-up plan sets so you can see exactly where each quantity was measured.
What our glass and glazing estimating covers in Division 08
We measure glazed area in square feet by elevation and separate vision glass, spandrel glass and opaque panels. Frame is taken off in linear feet for mullions, horizontals, verticals and jamb conditions, then converted to the fabricator's stock lengths. Doors, hardware sets, lites, mirrors and fire-rated assemblies are counted each. Embeds, anchors and structural steel at curtain wall are taken off separately.
Curtain Wall Takeoff
Field area by elevation, split vision and spandrel, plus mullions, horizontals, verticals and corner conditions.
SF · LFStorefront Systems
Head, sill, jamb and intermediate verticals measured in linear feet; glass and infill panels in square feet.
LF · SFEntrance Doors
Aluminum, glass and balanced doors counted each, with hardware sets, closers, pivots and thresholds.
EAGlass & Glazing
1-inch insulating, laminated, tempered, spandrel and low-e glass priced by type, thickness and square footage.
SFInterior Glazing
Borrowed lites, interior storefront and mirrors measured and priced, including fire-rated glazing at rated walls.
SF · EASealant & Flashing
Perimeter sealant, backer rod, wet seal, sill pans, end dams and through-wall flashing at openings.
LFEmbeds & Anchors
Embeds, anchors and structural steel at curtain wall taken off separately and priced with connection details.
EA · LBFreight & Equipment
Freight, crating, equipment and jobsite delivery costs added based on project location and size.
LSWhat every glass & glazing estimating takeoff includes
- Curtain wall field area by elevation, split vision and spandrel
- Curtain wall mullions, horizontals, verticals and corner conditions
- Storefront head, sill, jamb and intermediate verticals
- Aluminum, glass and balanced entrance doors
- Door hardware sets, closers, pivots, thresholds and exit devices
- 1-inch insulating, laminated, tempered, spandrel and low-e glass
- Interior glazing, borrowed lites and mirrors
- Fire-rated glazing and frames at rated walls
- Perimeter sealant, backer rod and wet seal at head and sill
- Sill pans, end dams and through-wall flashing at openings
- Embeds, anchors and structural steel at curtain wall
- Freight, crating, equipment and jobsite delivery
How we complete a glass glazing takeoff
- Set up elevations and schedulesWe load the architectural elevations and curtain wall details into Bluebeam Revu and scale each view. Storefront and door schedules are transcribed into a takeoff sheet so every opening has a mark, a size and a type. Glass specifications are read for thickness, coating and tempering requirements before any quantity is measured. We also note the sill and head heights on each elevation, because a storefront that runs 10 feet tall prices differently from one that runs 14 feet. Oversized lites that exceed the fabricator's maximum are flagged at this stage.
- Measure glazed area by typeVision glass, spandrel glass and opaque panels are measured separately in square feet. We note the sill and head heights on each elevation, because a storefront that runs 10 feet tall prices differently from one that runs 14 feet. Oversized lites that exceed the fabricator's maximum are flagged at this stage. We also separate glass by thickness and coating, as 1-inch insulating units, laminated glass, and low-e coated glass each have different costs. Fire-rated glazing is measured separately and cross-checked against the rated wall plan.
- Take off frame in linear feetMullions, horizontals, verticals and jamb returns are measured in linear feet and converted to the fabricator's stock lengths. Corner conditions and jamb returns are listed separately because they generate extra cuts and waste. We note thermal break, finish and reinforcement requirements from the specification. For curtain wall, we also measure the head, sill, and jamb conditions, and account for any structural silicone or gaskets. Storefront framing is measured by opening, including head, sill, jamb, and intermediate verticals.
- Count doors, hardware and special assembliesEach entrance door, leaf and hardware set is counted from the door and hardware schedules. Closers, pivots, thresholds, panic devices and electric strikes are listed as separate lines so nothing is buried in a base set. Fire-rated glazing and frames are counted each and cross-checked against the rated wall plan. We also count mirrors, borrowed lites, and interior glazing panels. For hardware, we verify voltage and function for electric strikes and card readers, and include coordinators and overhead stops where specified.
- Price with ZIP-adjusted ratesMaterial and labor rates are adjusted by ZIP code using RSMeans data and current fabricator quotes. Freight, crating, storage and equipment such as boom lifts or swing stages are carried as separate lines. The completed estimate is organized by CSI MasterFormat and returned in Excel and PDF with marked-up plan sets. We also apply waste factors to glass and frame, typically 5–10% for glass and 10–15% for frame, based on project complexity. Waste is shown as a separate line so you can adjust it.
- Review and deliverBefore delivery, we perform a quality check comparing the takeoff to the elevations and schedules to catch any missed openings or incorrect quantities. We flag any scope gaps or items that require clarification, such as delegated design or mock-up testing. The final estimate is delivered in Excel and PDF, with marked-up plan sets highlighting where each quantity was measured. We also include a summary of assumptions and exclusions. Rush delivery is available if your bid date is sooner than 24–48 hours.
What to send us
- Architectural elevationsScaled elevations showing curtain wall, storefront and window locations with sill and head heights.
- Curtain wall detailsVertical and horizontal sections, corner details, jamb returns and anchor details.
- Storefront scheduleOpening marks, sizes, frame types and glass build-up for each storefront opening.
- Door and hardware scheduleDoor types, leaf sizes, hardware sets and keying requirements for entrance doors.
- Glass specificationThickness, coating, tempering, laminating and fire-rating requirements for each glazing type.
- Structural drawingsEmbed and anchor locations at curtain wall, plus support steel details if delegated.
- Bid form or scope letterSo we price to the same format and include alternates if requested.
Sample format for a commercial glass estimating takeoff
This is the format your estimator receives. Quantities are illustrative and come from the elevations and schedules.
| Section | Line item | Qty | Unit | Ref. |
|---|---|---|---|---|
| 08 44 13 | Curtain wall, vision glass, field area | 4,820 | SF | A-501 |
| 08 44 13 | Curtain wall, spandrel glass | 1,260 | SF | A-501 |
| 08 44 13 | Curtain wall mullions and horizontals | 2,140 | LF | A-502 |
| 08 44 13 | Curtain wall embeds and anchors | 96 | EA | S-301 |
| 08 41 13 | Storefront framing, head/sill/jamb | 780 | LF | A-510 |
| 08 41 13 | Aluminum entrance doors | 8 | EA | A-511 |
| 08 71 00 | Door hardware sets | 8 | EA | A-511 |
| 08 81 00 | 1-inch insulating glass, tempered | 940 | SF | A-520 |
| 08 83 00 | Interior mirrors | 22 | EA | A-521 |
| 07 92 00 | Perimeter sealant and backer rod | 1,650 | LF | A-502 |
Units of measure a glazing estimator works in
Every line in the takeoff carries a unit that matches how the material is bought or installed. Quantities are pulled from the elevations and schedules, not estimated from floor area.
| Item | Unit | How it's measured |
|---|---|---|
| Glazed area | SF | Measured by elevation for curtain wall, storefront, windows and interior glass |
| Frame length | LF | Mullions, horizontals, verticals, head, sill and jamb conditions |
| Doors and hardware | EA | Counted from door and hardware schedules, one set per leaf |
| Embeds and anchors | EA | Counted at each curtain wall anchor point from structural drawings |
| Structural steel | LB or TON | Taken off from embed and support steel details at curtain wall |
| Sealant | LF | Perimeter, head, sill, jamb and between-frame joints with backer rod |
| Grout and backer | CY or BAG | Sill conditions and grout at storefront bases |
Worked example: glazing estimate for contractors on a two-story entrance
The dimensions below are illustrative. We are taking off a single two-story storefront entrance bay, 20 feet wide by 24 feet tall, with a pair of aluminum entrance doors at the base. We measure glazed area in square feet, frame in linear feet, and doors and hardware each.
Step 1 — Measure glazed area. The bay is 20 ft wide × 24 ft tall = 480 SF of rough opening. Deduct the door opening: a pair of 3 ft × 7 ft doors = 42 SF. Net glazed area = 480 − 42 = 438 SF. Split by type: 40% spandrel = 175 SF, 60% vision = 263 SF. These are measured separately because spandrel glass with backpans prices differently from vision glass.
Step 2 — Take off frame in linear feet. Head: 20 LF. Sill: 20 LF. Jambs: 2 × 24 = 48 LF. Intermediate verticals: at 5 ft on center across 20 ft = 3 verticals × 24 ft = 72 LF. Door frame: 2 jambs × 7 ft + 1 head × 6 ft = 20 LF. Total frame = 20 + 20 + 48 + 72 + 20 = 180 LF.
Step 3 — Count doors and hardware. Two leaves = 2 EA. Hardware sets: 2 EA, each with closer, pivot, threshold, exit device and electric strike. We list each hardware item separately so electrification is visible.
Step 4 — Measure sealant and flashing. Perimeter sealant at head, sill and jambs: 20 + 20 + 48 = 88 LF. Between-frame joints: 3 verticals × 24 ft = 72 LF. Total sealant = 160 LF. Sill pan and end dams: 20 LF.
Step 5 — Count embeds and anchors. At 4 ft on center along head and sill: 20 ÷ 4 = 5 anchors per line × 2 lines = 10 EA. Plus 2 jamb anchors = 12 EA total.
Step 6 — Apply waste as a separate line. Glass waste at 8%: vision 263 × 0.08 = 21 SF; spandrel 175 × 0.08 = 14 SF. Frame waste at 12%: 180 × 0.12 = 22 LF. Sealant waste at 10%: 160 × 0.10 = 16 LF. Waste is shown separately so you can adjust it.
Step 7 — Price with ZIP-adjusted rates. Material and labor rates are adjusted by ZIP code using RSMeans data and current fabricator quotes. Freight, crating and equipment such as a boom lift for the upper floor are carried as separate lines.
The result is a line-item takeoff your estimator can check against the elevations and the fabricator quote. If the plans show a different bay size or glass build-up, the same sequence applies; only the dimensions change.
What moves the glass bid estimating number
Relative impact on a typical estimate for this trade, based on estimator judgment. Select a bar for details.
System type
Curtain wall carries engineered frame, embeds and delegated design. Storefront is simpler and priced by opening. Window wall sits between the two and depends on how the head and sill are detailed. The choice between these systems affects the unit cost per square foot and the amount of engineering required. Curtain wall typically requires shop drawings and structural calculations, while storefront may not.
Curtain wall carries engineered frame, embeds and delegated design. Storefront is simpler and priced by opening. Window wall sits between the two and depends on how the head and sill are detailed. The choice between these systems affects the unit cost per square foot and the amount of engineering required. Curtain wall typically requires shop drawings and structural calculations, while storefront may not.
1-inch insulating units, laminated, tempered and low-e coated glass each price differently. Spandrel glass with backpans adds material and labor. Fire-rated glazing carries a premium and requires rated frames. The thickness of the glass also matters: 1/4-inch, 3/8-inch, and 1/2-inch each have different costs. Coating types such as low-e and reflective also affect price. Laminated glass for impact resistance adds interlayer cost.
Clear anodized, painted and thermally broken frames are priced separately. A thermal break affects the extrusion cost and the fabrication time. Custom colors and special finishes add lead time and cost. The finish warranty and exposure conditions may require a higher-grade finish, such as a fluoropolymer coating. We check the specification for finish requirements and include them as separate lines.
Glass above the first few floors requires boom lifts, swing stages or crane time. Access equipment is carried as a separate line so you can see the exposure. Upper-floor work also adds labor hours per unit. The erection plan and site logistics, such as street closures or limited staging, can further increase access costs. We review the site plan and note any special access requirements.
Lites over the fabricator's maximum require special runs or oversized freight. Crating, storage and jobsite protection for finished frames are real costs. We flag oversized lites at takeoff so they are not discovered at buyout. The distance from the fabricator to the jobsite also affects freight. We include freight as a separate line based on the project location and glass sizes.
Exit devices, closers, electric strikes, and card readers are priced per set. Electrified hardware requires coordination with Division 26 for power. We list each hardware item separately so you can see the cost of electrification. The number of doors and the complexity of the hardware schedule directly impact the total. We also account for keying and cylinder requirements.
Perimeter sealant, backer rod, and wet seal at head and sill are measured in linear feet. Sill pans, end dams, and through-wall flashing are often required at storefront and window openings. These items are frequently missed but are essential for weatherproofing. We take them off from architectural details and include them as separate lines. The type of sealant, such as silicone or polyurethane, also affects cost.
Common scope gaps we catch in curtain wall estimating
Glazing bids fail when a line is missing or buried in a frame rate. We list these as separate items so you can see the exposure before you mark up.
- Mock-up and test panel requirements for curtain wall, including independent lab testing costs, are often buried in the specification and not priced as a line item.
- Engineered shop drawings, structural calculations and delegated design fees for curtain wall are frequently left out of the frame rate and must be carried separately.
- Sill pans, end dams and through-wall flashing at storefront and window openings are shown on architectural details but missed in the frame takeoff.
- Fire-rated glazing, fire-rated frames and firestopping at rated assemblies are counted from the rated wall plan, not from the glazing schedule alone.
- Hardware beyond the base set — closers, coordinators, electric strikes and card readers — is listed each so nothing is assumed included in the door price.
- Crane, boom lift and swing stage time for glass above the first few floors is carried as a separate equipment line based on the erection plan.
- Freight, crating, storage and jobsite protection for glass and finished frames are added as separate lines rather than absorbed into material rates.
- Structural silicone and gaskets at curtain wall are often omitted from the frame takeoff, but they are required for weathertightness and must be measured separately.
- Interior glazing and mirrors are sometimes excluded from the base bid, but if they are shown on the architectural plans, they need to be priced as separate line items.
Glazing system and glass build-up
The materials axis runs from system type and glass build-up through frame finish and thermal break. Each combination changes the unit cost and the takeoff lines we measure.
| System or glass type | How it is taken off | What changes in pricing |
|---|---|---|
| Curtain wall, vision glass | SF by elevation; mullions and horizontals in LF; embeds each | Engineered frame, delegated design, mock-up testing, access equipment |
| Curtain wall, spandrel glass | SF by elevation; backpans and insulation in SF | Backpan material and labor; insulation; opaque panel finish |
| Storefront framing | LF for head, sill, jamb and intermediate verticals; doors each | Priced by opening; simpler frame; sill pans and flashing required |
| 1-inch insulating glass | SF by type and thickness; tempered and low-e noted separately | Coating type, thickness, tempering and laminating each add cost |
| Laminated glass | SF by type; interlayer thickness noted | Interlayer material and labor; impact or security requirements |
| Spandrel glass with backpan | SF by elevation; backpan counted separately | Backpan material and labor; insulation; finish on opaque panel |
| Fire-rated glazing | SF and EA from rated wall plan; frames counted each | Rated glass premium; rated frames; firestopping at perimeter |
| Interior glazing and mirrors | SF for office fronts and borrowed lites; mirrors each | Frame type; glass build-up; hardware and mounting for mirrors |
Codes and standards that change the takeoff
Model codes
Glazing quantities and glass types are driven by the adopted building code. The International Building Code (IBC) and International Residential Code (IRC) set requirements for safety glazing in hazardous locations, fire-rated glazing at rated wall assemblies, and minimum thickness for wind and seismic loads. The International Energy Conservation Code (IECC) sets U-factor and solar heat gain coefficient limits that determine whether you need low-e coatings, insulating units or thermally broken frames. NFPA 13 affects sprinkler locations near glazing, which can change head placement and glass protection. Confirm the adopted code edition with the local building department, because editions vary by jurisdiction and change the quantities you price.
Industry standards
ASTM standards govern test methods and product performance. ASTM E330 covers structural performance under wind load; ASTM E331 covers water penetration; ASTM E283 covers air infiltration. ASTM C1036 covers flat glass quality, and ASTM C1172 covers laminated glass. The Glass Association of North America (GANA) publishes glazing manuals that set minimum glass thickness and edge clearance. These standards change the glass build-up and frame reinforcement you must price, especially for curtain wall and large storefront openings.
Specification sections
Read Division 08 sections closely. 08 41 13 Aluminum-Framed Entrances and Storefronts sets frame finish, hardware and glazing stops. 08 44 13 and 08 45 13 Glazed Aluminum Curtain Walls set performance requirements, delegated design and mock-up testing. 08 51 13 Aluminum Windows sets window types and performance. 08 71 00 Door Hardware sets hardware sets, keying and electrification. 08 80 00 Glazing and 08 81 00 Glass Glazing set glass types, thickness and coatings. 08 83 00 Mirrors and 08 88 00 Special Function Glazing cover mirrors and fire-rated or security glazing. Division 05 12 00 Structural Steel covers embeds, and Division 07 92 00 Joint Sealants covers sealant at glazing interfaces.
Local amendments
Adopted code editions and local amendments vary by state, county and city. Wind-borne debris requirements in coastal areas, seismic requirements in active zones, and energy code amendments all change glass type, frame reinforcement and hardware. Some jurisdictions require independent lab testing for curtain wall; others accept manufacturer test reports. Before you finalize the buyout, confirm the adopted code edition and any local amendments with the local building department. We price to the code edition you tell us, and we flag where a local amendment could change the scope.
Who uses this estimate
General contractors
You need a Division 08 number to compare against glazing subcontractor bids and to confirm your buyout budget before the bid goes out. The takeoff lets you see quantities behind each line.
Glazing subcontractors
You are pricing several jobs at once and need a second set of eyes on the takeoff. The estimate gives you quantities to check against your fabricator quotes and your own labor history.
Developers and owners
You are validating a budget before design is complete. The estimate shows the main cost drivers so you can decide where to spend on glass and frame finishes.
Architects
You are checking that the specified glazing systems are priced consistently across bidders. The line-item format makes it easy to compare scope between contractors.