You have a plan set — architectural, structural, and framing sheets — and you need a defensible lumber takeoff before you buy, bid, or compare a material supplier quote. We measure board feet, linear feet, sheet counts, and piece counts by nominal size and grade, then organize the results by CSI MasterFormat division with marked-up plan sets so you can trace every number back to a sheet. For projects in Texas, California, Florida, New York, or North Carolina, we adjust material and labor pricing by ZIP code using RSMeans data. Turnaround is 24–48 hours for most projects, with rush available.
- 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
A lumber takeoff is not a single number. It is a list of 2x4 and 2x6 plates by width and treatment, studs by height and spacing, headers and beams by span and load, joists and rim board by depth and series, sheathing by thickness and rating, and connectors by size and count. We take off each of those separately, apply typical lumber waste factor ranges — 5–10% for dimension lumber, 10–15% for panel goods depending on layout — and flag where the drawings leave a gap. Our lumber takeoff and estimating covers Division 06 Wood, Plastics and Composites, including Section 06 11 00 Wood Framing and Section 06 16 00 Sheathing. If you need a framing-only scope, see our framing estimating services. If trim and casework are in scope, we cover that under millwork and casework estimating.
When you send plans, we return an Excel workbook and PDF organized by division, with a marked-up plan set showing where each quantity came from. You can hand the material list to a lumber yard, load it into your own pricing, or use it to check a supplier's quote line by line. To get started, get an estimate.
What our lumber takeoff services include
We measure framing lumber, panel goods, and the connectors that hold them together. The takeoff covers rough carpentry and sheathing under Division 06, plus the treated stock and fasteners that framers actually install. Engineered lumber is taken off by series and depth, not as a generic 'LVL' line.
Plates & Studs
Sill, sole, and top plates plus studs by height, spacing, species, and grade, including treated bottom plates where required.
LF · EAHeaders & Beams
Headers, beams, and built-up members sized by span and load, with jack and king stud counts and bearing notes.
LF · EAFloor Framing
Joists, rim board, and I-joist web stiffeners by depth and series, with hanger counts and blocking at bearing lines.
LF · EARoof Framing
Rafters, hips, valleys, and ridge boards by span and pitch, plus collar ties and lookouts where shown.
LF · EASheathing & Wrap
Wall and roof sheathing panels by thickness and rating, house wrap, and corner bracing measured by area and sheet count.
SF · EATrusses & Bracing
Trusses counted by unit with bearing, hold-down, and temporary bracing notes, plus permanent lateral bracing quantities.
EA · LFBlocking & Fireblocking
Blocking, fire blocking, and draft stopping at plate lines, soffits, and penetrations, taken off by location and size.
LF · EAStairs & Connectors
Stair stringers, treads, risers, and landing framing, plus hangers, ties, straps, and SDS screws by size and count.
EA · LFWhat every lumber takeoff & estimating takeoff includes
- Sill, sole, and top plates in treated and untreated stock by width
- Wall studs by height, spacing, species, and grade
- Headers, beams, and built-up members by span and load
- Floor joists, rim board, and I-joist web stiffeners
- Subfloor and underlayment panels by thickness and edge profile
- Roof rafters, hips, valleys, and ridge boards by span and pitch
- Roof sheathing panels by thickness and rating
- Wall sheathing, house wrap, and corner bracing
- Trusses counted by unit with bearing and hold-down notes
- Blocking, fire blocking, and draft stopping at plate lines
- Stair stringers, treads, risers, and landing framing
- Connectors: hangers, ties, straps, and SDS screws by size and count
How we perform wood framing takeoff and estimating
- Review plan set and specsWe start with the architectural, structural, and framing sheets, plus Division 06 specifications. We note the species and grade (SYP, DF, SPF), treatment requirements, and any fire-retardant or engineered lumber specs. We also check the general notes for waste factors, panel edge nailing, and connector schedules. Any discrepancy between plans and specs is logged for clarification before measuring begins.
- Set up wall and floor takeoffUsing Bluebeam Revu and PlanSwift, we measure wall lengths by type — exterior, interior bearing, interior non-bearing — and record stud spacing, plate heights, and opening sizes. Floor framing is measured by bay, with joist span, depth, and series recorded. We mark each measurement on the plan set. Wall types are color-coded for easy verification.
- Measure roof and sheathingRoof takeoff follows the framing plan: rafters, hips, valleys, and ridge boards by span and pitch. We calculate sheathing area from the roof plan, add for overhangs and waste, and convert to sheets by size. Wall sheathing is measured by elevation, with corner bracing and house wrap listed separately. Dormers and skylights are measured individually.
- Count connectors and blockingWe count joist hangers, hurricane ties, straps, and SDS screws from the structural sheets and connector schedules. Blocking and fire blocking are measured from wall sections and details, then converted to linear feet by size. We flag any connector shown on a detail but missing from the schedule. Counts are cross-checked against the number of joists and studs.
- Apply waste factors and checkWe apply typical waste factors: 5–10% for dimension lumber, 10–15% for panel goods depending on layout. Then we cross-check totals against the plan set — plate lines, rim board, and sheathing areas — to catch missing items. Any gap is noted in the deliverable. We also verify that the waste factor aligns with your purchasing practices.
- Format and deliverThe final takeoff is organized by CSI MasterFormat division in Excel, with a PDF summary and marked-up plan sets. Each line shows quantity, unit, and sheet reference. We include a separate waste line and a list of assumptions so you can adjust the list for your supplier's stock lengths. The workbook includes a summary tab with totals by category.
What we need from you
- Architectural plansFloor plans, elevations, and wall sections to measure wall lengths, plate heights, and sheathing areas.
- Structural plansFraming plans, foundation plan, and details for joist spans, beam sizes, and connector schedules.
- SpecificationsDivision 06 specs for species, grade, treatment, and any fire-retardant or engineered lumber requirements.
- Waste factorYour preferred waste percentages for dimension lumber and panel goods, or we use typical ranges.
- Connector scheduleIf available, the schedule showing hanger, tie, and strap models and counts.
- Roof and floor framing plansSeparate plans for roof and floor framing to measure rafters, joists, and sheathing accurately.
Sample dimensional lumber takeoff format
This is how a typical lumber takeoff looks in Excel. Quantities are illustrative for a mid-size project.
| Section | Line item | Qty | Unit | Ref. |
|---|---|---|---|---|
| 06 10 00 | 2x6 treated sill plate, 16 ft | 620 | LF | S-101 |
| 06 11 00 | 2x6 studs 92-5/8 in @ 16 o.c. | 1,840 | EA | A-201 |
| 06 11 00 | 2x10 floor joists 16 ft @ 16 o.c. | 168 | EA | S-201 |
| 06 16 13 | 7/16 in OSB wall sheathing 4x8 | 142 | SH | A-301 |
| 06 16 23 | 15/32 in CDX roof sheathing 4x8 | 96 | SH | A-401 |
| 06 16 26 | 23/32 in T&G subfloor 4x8 | 96 | SH | S-202 |
| 06 05 23 | Joist hangers, 2x10 | 168 | EA | S-501 |
| 06 11 00 | 2x4 interior non-bearing studs 92-5/8 in | 420 | EA | A-202 |
| 06 11 00 | 2x8 header, 4 ft | 24 | EA | S-301 |
| 06 16 00 | 7/16 in OSB roof sheathing 4x8 | 110 | SH | A-402 |
| 06 05 23 | Hurricane ties, H2.5 | 220 | EA | S-502 |
| 06 10 00 | 2x4 treated bottom plate, 16 ft | 380 | LF | S-102 |
Units we use: board foot, linear foot, sheet counts
Each line item carries the unit that matches how it is bought and installed. You will see these units throughout the Excel workbook and PDF.
| Item | Unit | How it's measured |
|---|---|---|
| Dimension lumber and timbers | BF | Board feet calculated as nominal thickness × width × length × pieces, divided by 12. |
| Plates, joists, rafters, studs | LF | Linear feet by nominal size, measured along the member centerline from framing plans. |
| Studs, joists, rafters, headers | EA | Piece count by length and nominal size, taken from wall and floor framing sheets. |
| Sheathing, subfloor, underlayment | SF | Square feet of installed area, then converted to sheets. |
| Panel goods (4x8, 4x9, 4x10, 4x12) | SH | Sheet count by size and thickness, including cut allowances. |
| Connectors, hangers, anchor bolts | EA | Count of each connector type by size and model, from structural sheets. |
| Engineered lumber (LVL, LSL, PSL, I-joists) | EA or LF | By depth and series, measured from engineered lumber layouts. |
Worked example: framing takeoff of a simple gable roof
Let's walk through a takeoff for a simple gable roof over a 24 ft × 36 ft building. All dimensions are illustrative and do not represent an actual project. We'll calculate rafters, ridge board, and roof sheathing.
Given:
- Building width: 24 ft (span)
- Building length: 36 ft
- Roof pitch: 6:12 (rise:run)
- Rafter spacing: 16 in. o.c.
- Overhang: 12 in. at eaves and gables
- Rafter size: 2x8
- Sheathing: 7/16 in. OSB
Step 1: Calculate rafter length.
- Run = half span = 12 ft.
- Pitch factor for 6:12 = √(6²+12²)/12 = √180/12 ≈ 1.118.
- Rafter length (without overhang) = run × pitch factor = 12 ft × 1.118 ≈ 13.42 ft.
- Add eave overhang: 1 ft × 1.118 ≈ 1.12 ft.
- Total rafter length ≈ 14.54 ft. Round to 14 ft 8 in. (stock length 16 ft).
Step 2: Number of rafters.
- Rafter spacing = 16 in. o.c. = 1.333 ft.
- Number of spaces = (36 ft / 1.333 ft) + 1 = 27 + 1 = 28 spaces.
- Rafters per side = 28 (since rafters are on both sides, but each rafter pair shares a ridge; typically count 28 rafters per side).
- Total rafters = 28 × 2 = 56 pieces.
- Add 2 for gable end overhangs? Actually, gable overhangs use lookouts or extended rafters; we'll assume 2 extra per side = 4 extra. Total = 60 pieces.
Step 3: Ridge board.
- Length = building length + 2 ft for overhang = 36 ft + 2 ft = 38 ft. Use 2x8, 38 LF. Typically one piece, but stock lengths max 20 ft, so two 20 ft pieces.
Step 4: Roof sheathing area.
- Roof surface area = 2 × (rafter length × building length) = 2 × 14.54 ft × 36 ft ≈ 1,047 SF.
- Add gable overhangs: 2 × (1 ft × 14.54 ft) ≈ 29 SF. Total ≈ 1,076 SF.
- Convert to sheets: 1,076 SF / 32 SF per sheet = 33.6 sheets. Round up to 34 sheets.
- Apply waste factor (10% for panel goods): 34 × 1.10 = 37.4 sheets. Round up to 38 sheets.
Step 5: Summary.
- 2x8 rafters: 60 EA (16 ft lengths).
- 2x8 ridge: 38 LF (two 20 ft pieces).
- 7/16 in. OSB sheathing: 38 sheets.
- Note: This does not include connectors, blocking, or fascia. Those would be separate line items.
This example shows how we convert dimensions to quantities, apply waste as a separate step, and round up to purchasable units. Your actual takeoff will include additional items like hurricane ties, ridge straps, and ice barrier if required.
What drives lumber cost estimating
Relative impact on a typical estimate for this trade, based on estimator judgment. Select a bar for details.
Species and grade
SYP, DF, and SPF carry different prices and availability by region. Higher grades (No. 1 vs. No. 2) increase cost. We take off by the grade specified, not a default. If the spec allows substitutions, we note the impact on quantity and price.
SYP, DF, and SPF carry different prices and availability by region. Higher grades (No. 1 vs. No. 2) increase cost. We take off by the grade specified, not a default. If the spec allows substitutions, we note the impact on quantity and price.
LVL, LSL, PSL, and I-joists cost more per foot but reduce waste and labor. Depth and series affect price significantly — a 14-in. I-joist is not the same as an 11-7/8 in. We take off by the exact series and depth shown on the engineered lumber layout.
Panel goods generate more waste than dimension lumber. Complex roof layouts and small rooms increase cut waste. We apply waste as a separate line so you can adjust it. Typical ranges are 5–10% for dimension lumber and 10–15% for panel goods.
Treated lumber for sill, deck, and near-grade members adds cost. Fire-retardant lumber for multifamily and commercial projects is a significant premium. We list treated and FR separately. Treatment level (ground contact vs. above ground) also affects price.
Hangers, ties, and structural screws are a small percentage of material cost but a common miss. We count them from the schedule and note any missing from the drawings. Connector finish (galvanized vs. stainless) can add cost for treated lumber.
Truss delivery and crane-setting allowances affect the total material list. We note them as separate line items when trusses are in scope. Site access and unloading constraints can also add cost. We flag any special delivery requirements noted in the specs.
Lumber yards stock standard lengths (8, 10, 12, 14, 16 ft). Non-standard lengths may require special order or generate more waste. We take off by the lengths shown on the plans and note where stock lengths could be substituted to reduce cost.
Common scope gaps we catch in a lumber list
These are the items that most often go missing from a lumber takeoff. We flag them in the deliverable so you can price them.
- Blocking and fire blocking for code compliance, often 5–10% of framing LF. Hides in wall sections and details, not on framing plans. We measure from sections and add to the list.
- Treated lumber for bottom plates, sill, and any member within 6 in. of grade. Often shown as a note on the foundation plan. We check the note and list treated stock separately.
- Rim board, band joists, and squash blocks at I-joist bearing points. These appear on engineered lumber layouts but are missed when only the floor framing plan is used.
- Sheathing clips, H-clips, and panel edge nailing patterns. Specified in Division 06 but not shown on plans. We count them from the specs and add a line item.
- Connectors and hardware (hangers, ties, straps, anchor bolts) not shown on framing plans. They live in the connector schedule or structural details. We cross-check both.
- Engineered lumber by series and depth, not just 'LVL'. Depth affects price significantly. We take off by the series and depth shown on the engineered lumber layout.
- Wall sheathing and house wrap, often listed on architectural sheets, not structural. We check both sheet sets and include them in the takeoff.
- Stair framing: stringers, treads, risers, and landing framing. Often detailed on architectural sheets but missed in structural takeoff. We measure from both sets.
- Roof sheathing clips and edge nailing for high-wind zones. Required by code in some jurisdictions but not always shown. We check the general notes and add if specified.
Lumber and panel options: what we compare
We take off by the specified material, but here is how options affect quantities and cost.
| Material / format | Common sizes | Unit basis | Waste factor (typical) | Cost driver |
|---|---|---|---|---|
| Dimensional lumber (SYP, DF, SPF) | 2x4 to 2x12 | BF or LF | 5–10% | Species, grade, treatment, stock lengths |
| Engineered lumber (LVL, LSL, PSL) | 1.75 in. to 3.5 in. thick, depths to 24 in. | LF or EA | 3–5% (cut to order) | Depth, series, manufacturer |
| I-joists | 9.5 in. to 16 in. depth | LF or EA | 5–8% | Depth, series, web stiffeners, rim board |
| Panel goods (OSB, CDX, plywood) | 4x8, 4x9, 4x10, 4x12 | SF or SH | 10–15% | Thickness, rating, edge profile (T&G vs. square) |
| Treated lumber | 2x4 to 2x12 | BF or LF | 5–10% | Treatment level (ground contact vs. above ground) |
| Fire-retardant lumber | 2x4 to 2x12 | BF or LF | 5–10% | Specification (ASTM E84, NFPA 255), treatment method |
Codes and standards that affect lumber quantities
Model codes
Lumber quantities are driven by the adopted International Building Code (IBC) or International Residential Code (IRC). The IRC prescriptive span tables in Chapter 8 set joist, rafter, and ceiling joist sizes; changing from 16" to 24" on-center spacing alters piece counts and sheathing panel layout. IRC Chapter 6 covers wall framing, including stud spacing and header spans. Fireblocking and draftstopping per IRC Section 302.11 add linear feet of blocking. The IECC affects sheathing quantities through continuous insulation and air-barrier requirements. For decks, the IRC and IBC reference the American Wood Council's DCA 6 for ledger attachment and footing sizes, which changes treated lumber counts.
Industry standards
The American Wood Council's National Design Specification (NDS) governs allowable spans, notches, and holes, which can force larger members or additional blocking. For treated lumber, AWPA standards define use categories and retention levels; the code references these for members near grade or in contact with masonry. Connectors must be listed and evaluated per ASTM D7147 or ICC-ES acceptance criteria, and their quantities come from the structural plans. APA – The Engineered Wood Association performance-rated panel standards determine sheathing thickness and span ratings, affecting panel counts. Truss design drawings sealed by a registered design professional provide the member list and bearing locations.
Specification sections
You will find lumber quantities in CSI MasterFormat Division 06: Section 06 10 00 Rough Carpentry, 06 11 00 Wood Framing, 06 16 00 Sheathing, and 06 05 23 Wood, Plastic, and Composites Fastenings. Section 06 10 00 lists member sizes, grades, and species; a change from #2 to #1 grade can reduce allowable spans and increase piece counts. Section 06 16 00 specifies panel thickness, span rating, and edge support. Section 06 05 23 lists nail, screw, and connector schedules. Division 05 12 00 Structural Steel may include embedded plates that framing attaches to. Division 07 25 00 Weather Barriers can require sheathing joints to be taped, adding tape quantities.
Local amendments
Adopted code editions vary by state and municipality. For example, California adopts the California Building Code with amendments for seismic zones, which can require additional hold-downs and continuous load path straps. Florida amends for high-velocity hurricane zones, adding specific nailing patterns and connectors. Texas and North Carolina adopt the IRC with wind provisions that affect roof sheathing attachment. Always confirm the adopted edition and local amendments with the local building department. We take off to the code edition referenced in your specifications and note any assumptions. For state-specific guidance, see our Texas estimating, California estimating, Florida estimating, New York estimating, and North Carolina estimating pages. To send plans, use Get an estimate.
Who uses this lumber estimate for contractors
General contractors
You need a material list to bid the framing package and compare lumber yard quotes. Our takeoff gives you line items by size and grade, so you can spot a supplier's missing item.
Framing subcontractors
You buy the lumber and need to know board feet, sheet counts, and connector counts before you price labor. We provide the quantities you need to build your bid.
Lumber yards
You quote from a list. Our takeoff is organized by nominal size and grade, so you can price stock lengths and identify special-order items like engineered lumber.
Developers
You compare bids across framers. A third-party takeoff gives you a common quantity baseline to check each bid against and to validate change orders.
Architects
You need to check that your drawings are complete. Our marked-up plan sets show where we measured and flag missing blocking, connectors, or sheathing notes.