Framing Calculators

Ice and Water Shield CalculatorEstimate membrane rolls for eaves, valleys and penetrations (draft, publishing soon)

Drip Edge CalculatorEstimate drip edge pieces for eaves and rakes (draft, publishing soon)
Ridge Cap CalculatorEstimate ridge cap bundles and pieces from ridge and hip lengths (draft, publishing soon)
Roofing Nails CalculatorNail quantity and weight for shingle roofs (draft, publishing soon)
Roll Roofing CalculatorRolls and cement for low-slope roofs (draft, publishing soon)
Shingle Weight CalculatorMaterial weight and dead load by roofing type (draft, publishing soon)
Roof Flashing CalculatorStep and valley flashing pieces for roof intersections (draft, publishing soon)
Metal Roofing CalculatorMetal panel count and fasteners (draft, publishing soon)
Flat Roof Membrane CalculatorMembrane rolls and adhesive for low-slope roofs (draft, publishing soon)
Cedar Shake CalculatorCedar shake bundles and hip ridge units (draft, publishing soon)
Roof Tile CalculatorConcrete and clay tile quantities and fasteners (draft, publishing soon)
Roof Coating CalculatorCoating gallons and containers for flat roofs (draft, publishing soon)
Roof Sheathing CalculatorPlywood and OSB panel count for roof decking (draft, publishing soon)
Snow Guard CalculatorPad-style snow guard quantity for metal and steep roofs (draft, publishing soon)
Purlin Spacing CalculatorPurlin lines and linear feet for metal roof framing (draft, publishing soon)

yle=”font-size:1.12rem;color:#334155″>Free framing and lumber calculators for carpentry projects. Measure board feet, size a lumber order, weigh a load and price the stock, with every tool showing the method and sources behind its numbers.

There is no sign-up and nothing you enter is stored. Each calculator runs in your browser.

Lumber Measurement

Measure, order, weigh and price lumber by board feet, pieces and species.

Board Foot CalculatorBoard feet and cost from thickness, width, length and price. (draft, publishing soon)
Lumber CalculatorPieces to buy from the linear feet you need and the stock length. (draft, publishing soon)
Lumber Weight CalculatorWeight by species and moisture, green or kiln-dried. (draft, publishing soon)
Lumber Price CalculatorCost from price per board foot or per piece, with conversion. (draft, publishing soon)

Sheet Goods

Estimate plywood and panel quantities, weights and span ratings.

Wood Shrinkage CalculatorDimensional change from moisture by species and cut. (draft, publishing soon)
Plywood CalculatorSheets needed and cost from area, sheet size and waste. (draft, publishing soon)
Plywood Weight CalculatorStack weight by panel type, thickness and sheet size. (draft, publishing soon)
Plywood Span CalculatorMaximum joist or rafter spacing from IRC span-rating table. (draft, publishing soon)

Wall Framing

Estimate studs, plates, headers and cripples for wall framing.

Stud CalculatorStud count, plates and cost from wall length, spacing and openings. (draft, publishing soon)
Framing CalculatorFull material list with studs, plates, headers and cripples. (draft, publishing soon)
Header Size CalculatorIRC header span lookup by opening width, building width and load. (draft, publishing soon)
Rough Opening CalculatorDoor and window rough opening size from the unit dimensions. (draft, publishing soon)
Rake Wall CalculatorPer-stud cut list for a gable rake wall by pitch and spacing. (draft, publishing soon)
Metal Stud CalculatorMetal stud count and track footage for steel-framed partitions. (draft, publishing soon)
Stud Length CalculatorStud cut length from ceiling height, plates and floor finish. (draft, publishing soon)
Door Jamb Width CalculatorJamb width from stud depth and wall finish on each side. (draft, publishing soon)

Floor Framing and Beams

Size joists and beams from the IRC span tables and estimate floor framing materials.

Joist Span CalculatorMaximum floor joist span from IRC tables by species, size and spacing. (draft, publishing soon)
Floor Joist CalculatorJoist count, rim joist and blocking for a floor frame. (draft, publishing soon)
Wood Beam Span CalculatorBuilt-up wood beam span from IRC girder tables by load case. (draft, publishing soon)
LVL Beam CalculatorLVL beam size from span, tributary width and load. (draft, publishing soon)
Ceiling Joist Span CalculatorMaximum ceiling joist span from IRC tables by species and size. (draft, publishing soon)

Stairs and Railings

Stair layout, stringer dimensions, winder geometry, baluster spacing and railing materials.

Stair CalculatorRiser and tread layout for straight stairs per IRC R311.7. (draft, publishing soon)
Stair Stringer CalculatorStringer length and notch dimensions for cut or housed stringers. (draft, publishing soon)
Spiral Staircase CalculatorRotation, headroom and tread depth for a spiral staircase. (draft, publishing soon)
Winder Stairs CalculatorWinder tread depth at walkline and narrow end per IRC code. (draft, publishing soon)
Baluster CalculatorBaluster count and spacing check against the IRC 4-inch rule. (draft, publishing soon)
Railing CalculatorPosts, balusters, rail footage and cost for a railing run. (draft, publishing soon)

Finish Carpentry and Wall Paneling

Trim, molding, casing and decorative wall paneling material estimators.

Baseboard CalculatorLinear feet and boards of baseboard from room dimensions. (draft, publishing soon)
Crown Molding CalculatorCrown molding footage, boards and cost from room perimeter. (draft, publishing soon)
Door Casing CalculatorCasing material for door frames with mitered or butt joints. (draft, publishing soon)
Wainscoting CalculatorPanel layout, stile and rail material for raised-panel wainscoting. (draft, publishing soon)
Board and Batten Wall CalculatorBatten and board count with even spacing for accent walls. (draft, publishing soon)
Shiplap CalculatorBoard count and coverage for shiplap accent or full walls. (draft, publishing soon)

Joinery, Cuts and Fasteners

Miter angles, compound cuts, squareness checks, kerf bending and fastener sizing.

Miter Angle CalculatorMiter angle and saw setting for equal or unequal-width boards. (draft, publishing soon)
Compound Miter CalculatorMiter and bevel angles for crown molding by spring angle. (draft, publishing soon)
Check Square CalculatorDiagonal and 3-4-5 check for squareness of a layout. (draft, publishing soon)
Kerf Bending CalculatorKerf spacing and cut count to bend plywood or MDF to a radius. (draft, publishing soon)
Countersink Depth CalculatorCountersink depth for flush-mount flat head screws. (draft, publishing soon)
Clearance Hole CalculatorClearance hole drill size by ASME and ISO fit class. (draft, publishing soon)
Pilot Hole CalculatorPilot hole drill size by screw gauge and wood type. (draft, publishing soon)
Nail Size CalculatorNail length and gauge from penny size for common, box and finish nails. (draft, publishing soon)

Cabinets and Countertops

Cabinet door sizing, countertop area, kitchen cabinet layout and closet shelving.

Cabinet Door CalculatorDoor size from opening, overlay style, gap and hinge count. (draft, publishing soon)
Countertop Sq Ft CalculatorCountertop area from section lengths and depths with waste. (draft, publishing soon)
Kitchen Cabinet CalculatorCabinet count, doors, hinges and hardware from linear feet. (draft, publishing soon)
Closet Shelving CalculatorShelf and rod linear footage for reach-in and walk-in closets. (draft, publishing soon)
Shelf Sag CalculatorShelf deflection and max safe load from span, thickness and material. (draft, publishing soon)

Roofing

Roof area, shingle quantities, pitch conversion and cost estimation.

Roofing CalculatorShingle squares, bundles and cost from footprint, pitch and waste. (draft, publishing soon)
Roof Pitch CalculatorPitch, angle, slope percent and area multiplier from rise and run. (draft, publishing soon)
Roof Overhang CalculatorRafter tail, soffit width and fascia height (draft, publishing soon)
Gable Roof CalculatorGable roof area, rafter length and count (draft, publishing soon)
Hip Roof CalculatorHip roof area, common and hip rafter lengths (draft, publishing soon)
Gambrel Roof CalculatorGambrel roof area, rafter lengths and ridge (draft, publishing soon)
Mansard Roof CalculatorMansard roof area, panel areas and rafter lengths (draft, publishing soon)
Shed Roof CalculatorShed roof area, rafter length and rafter count (draft, publishing soon)
Dormer Roof CalculatorDormer roof area and net area change (draft, publishing soon)
Shingle CalculatorShingle bundles, starter and ridge cap (draft, publishing soon)
Underlayment Calculator
📐Flooring CalculatorBoxes for any flooring type
📐Laminate Flooring CalculatorBoxes, underlayment and quarter round
📐Vinyl Plank Flooring CalculatorLVP boxes by room area
📐Hardwood Flooring CalculatorBoxes by plank width and waste
📐Carpet CalculatorSquare yards and seam planning
📐Carpet Tile CalculatorTiles and boxes by room area
🪜Stair Carpet CalculatorSquare yards by step count
🏋Rubber Flooring CalculatorTiles or rolls by area
🚗Garage Floor Tile CalculatorInterlocking tiles and edges
🧻Flooring Underlayment CalculatorRolls by floor area
💰Flooring Cost CalculatorTotal project cost by type
🪣Epoxy Floor CalculatorGarage kits by area and coats
💧Concrete Moisture CalculatorASTM F1869 MVER from a CaCl2 test
🧱Tile CalculatorTiles and boxes by area
🍳Backsplash Tile CalculatorTiles for a kitchen backsplash
🚿Shower Tile CalculatorWalls, floor and niche tile
📐Tile Layout CalculatorCenter the layout, avoid slivers
🧱Grout CalculatorGrout pounds and bags
🪣Thinset CalculatorMortar bags by trowel notch
📎Tile Leveling Clip CalculatorClips and wedges by area
🔥Heated Floor CalculatorRadiant mat watts and amps
🚿Shower Pan Slope CalculatorMortar bed slope to the drain
🎨Paint CalculatorInterior wall paint by room
🏠Exterior Paint CalculatorSiding paint with texture
🖌Primer CalculatorPrimer gallons by area
🚪Cabinet Paint CalculatorPaint and primer for cabinets
💰House Painting Cost CalculatorTotal painting cost estimate
⚗Paint Mixing Ratio CalculatorSplit a mix by its ratio
🧱Masonry Paint CalculatorPaint for brick and block
🪵Deck Stain CalculatorStain for deck and railings
🪵Fence Stain CalculatorStain for a fence both sides
🖌Wood Finish CalculatorPolyurethane and oil by area
🧱Concrete Stain CalculatorStain and sealer for concrete
🧪Epoxy Resin CalculatorMixed resin by volume
🔧Sealant CalculatorCaulk tubes by bead and length
🅿Line Striping CalculatorPaint for parking stripes
🧻Wallpaper CalculatorRolls by wall area and pattern
🧱Wall Panel CalculatorPanels for a wall or wainscot
🏠Siding CalculatorSiding squares and boxes
🏠Vinyl Siding CalculatorBoxes plus starter, corners, J-channel
🧱Fiber Cement Siding CalculatorHardiePlank planks by exposure
🪵Lap Siding CalculatorBoards by exposure and length
🏡Board and Batten Siding CalculatorBoards and battens per wall
🌲Cedar Shingle Siding CalculatorBundles by exposure
🛡Metal Siding CalculatorPanels by coverage width
🏚Stucco CalculatorBase and finish bags by area
🏠Soffit CalculatorPanels, fascia and vent NFA
🔺Gable End CalculatorTriangle area by span and pitch
💲Siding Cost CalculatorTotal cost by wall area and material
🪟Window Replacement Cost CalculatorCost by window type and method
🚪Door Replacement Cost CalculatorCost by door type and config
🪨Glass Weight CalculatorPane weight by size and thickness
🐟Glass Thickness CalculatorThickness for tank, table or shelf
🏢Window to Wall Ratio CalculatorGlazing share vs energy code
☀Skylight Size CalculatorDaylighting area by room
🪟Shutter Size CalculatorShutter width and height
🚗Garage Door Size CalculatorDoor size and clearances
🛖Deck CalculatorFull deck material takeoff
🪵Decking CalculatorBoards and screws by deck size
🏗Deck Footing CalculatorFootings, size and concrete
🔩Deck Ledger CalculatorIRC ledger fastener spacing
🪛Deck Screw CalculatorScrews, weight and boxes
💵Deck Cost CalculatorBuild cost by material
🛑Deck Post Size Calculator4×4 vs 6×6 by height and load
📏Deck Beam Span CalculatorBeam size and span (IRC)
⛱Pergola CalculatorLumber list and shade estimate
🏛Gazebo CalculatorOctagon size and hip rafters
🏠DIY Shed Cost CalculatorShed cost by build type
🏭Pole Barn Cost CalculatorPost-frame cost by spec
🐔Chicken Coop Size CalculatorCoop and run by flock size
🌱Hoop House CalculatorHoops, pipe and poly film
🍳Outdoor Kitchen Cost CalculatorCost by cabinet run and appliances
🚧Fence CalculatorPosts, rails and pickets
🪵Vinyl Fence CalculatorPanels, posts and caps
🔗Chain Link Fence CalculatorFabric, posts and fittings
🚧Fence Picket CalculatorPickets by length and gap
🕳Fence Post Depth CalculatorPost depth and concrete
🪵Split Rail Fence CalculatorPosts and rails by section
🐄Barbed Wire Fence CalculatorRolls, posts and staples
🐎Round Pen CalculatorPanels by pen diameter
🚪Gate CalculatorBrace length and anti-sag
🪨Gravel CalculatorCubic yards and tons to order
🗻Crushed Stone CalculatorTons by ASTM stone size
🏞Landscape Rock CalculatorTons and coverage by rock
🌊River Rock CalculatorTons and coverage by size
🪨Limestone CalculatorCrushed limestone by grade
🚶Decomposed Granite CalculatorDG tons and stabilizer bags
🚛Crusher Run CalculatorCompacted base tons
🏖Sand CalculatorTons and 50 lb bags
🛣Road Base CalculatorAggregate base by the ton
🪨Rip Rap CalculatorTons by class and thickness
🧱Gabion CalculatorBaskets and fill stone
⚖Cubic Yards to Tons CalculatorConvert volume to weight
🚗Asphalt Millings CalculatorTons for a millings drive
🌱Topsoil CalculatorCubic yards, tons and bags
🪵Mulch CalculatorCubic yards and bags
🪴Raised Bed Soil CalculatorFill and mix for garden beds
♻Compost CalculatorTopdressing and amendment
🛝Rubber Mulch CalculatorBags and playground depth
🌿Sod CalculatorPallets and pieces by area
🌱Grass Seed CalculatorPounds of seed by species
⛳Artificial Turf CalculatorRolls and infill for turf
💲Artificial Turf Cost CalculatorInstalled or DIY turf price
🧵Landscape Fabric CalculatorWeed barrier rolls and staples
🪵Landscape Edging CalculatorEdging pieces and stakes
🌱Plant Spacing CalculatorPlants to fill a bed
💦Hydroseed CalculatorSeed, mulch, water and loads
🚧Excavation CalculatorCubic yards and truck loads
⛏Trench CalculatorSpoil volume with OSHA slopes
⛰Cut and Fill CalculatorBalance cut against fill
🏗Backfill CalculatorFill around a structure
🌍Soil Swell CalculatorBank, loose and compacted
🚚Dump Truck CalculatorLoads to haul soil
🛞Compaction CalculatorLoose to compacted fill
💧Pond CalculatorGallons and liner size
🟦Pond Liner CalculatorLiner and underlayment size
📐Elevation Grade CalculatorPercent, degrees and ratio
🪓Land Clearing Cost CalculatorCost to clear by the acre
🛣Vertical Curve CalculatorRoad curve elevations
🚰French Drain CalculatorGravel, pipe and fabric
🕳Dry Well CalculatorSize a soakaway pit
⭕Culvert Size CalculatorPipe diameter for the flow
🌧Stormwater Runoff CalculatorPeak flow and volume
🚜Grading Cost CalculatorLevel and reshape ground
🚧Silt Fence CalculatorSediment-control fence
🌾Erosion Control Blanket CalculatorBlanket rolls and staples
🛣Asphalt CalculatorHot-mix asphalt tonnageFelt or synthetic underlayment rolls (draft, publishing soon)

More lumber, framing and carpentry calculators are on the way.