Basement finish calculator

Air sealing and rim joist

• Closed-cell spray foam kit 1 kit Foundation wall 130 ft, one per 250: 0.52 kit; rounded up to whole kit: 1. Froth-Pak 620 or equal, for the rim joist band.
• Pro foam cans, 24 oz 8 can Finished area 1,000 sq ft, one per 125: 8 can. For penetrations, plate gaps and small voids.
• Foam dispensing gun 1 each A fixed 1: 1 each.
• Fire block foam 4 can Partition walls 60 ft, one per 15: 4 can. At penetrations through a fire separation; check local code.

Rigid foam on the foundation walls

• 2 in XPS rigid foam board, 4x8 36 sheet Foundation wall area 1,040 sq ft at 32 a sheet: 32.5 sheet; plus 10% waste: 35.75; rounded up to whole sheet: 36. Not polyiso below grade.
• Foam-safe construction adhesive 26 tube Foundation wall area 1,040 sq ft, one per 40: 26 tube. Solvent adhesives melt foam.
• Foam seam tape, 3 in x 180 ft 3 roll Foundation wall area 1,040 sq ft, one per 400: 2.6 roll; rounded up to whole roll: 3. Every seam and edge: it is the air barrier.
• Utility knife blades, bulk 1 pack A fixed 1: 1 pack.

Left out: 3 in XPS rigid foam board, 4x8 (only when Climate zone is Zone 6 and colder).

Framing

• 2x4x8 SPF stud 195 each Wall length 190 ft + (Interior doors 2 each × 2.5): 195 each. About one per foot of wall covers studs at 24 in, the doubled top plate, blocking and corners; two and a half more frame each door.
• 2x4x8 pressure treated 27 each Wall length 190 ft at 8 a piece: 23.75 each; plus 10% waste: 26.13; rounded up to whole each: 27. Bottom plates, on the concrete.
• Sill seal foam gasket, 3-1/2 in x 50 ft 4 roll Wall length 190 ft at 50 a roll: 3.8 roll; rounded up to whole roll: 4.
• 3 in framing screws, 5 lb 5 box Wall length 190 ft, one per 40: 4.75 box; rounded up to whole box: 5.
• Tapcon concrete screws, 100 ct 2 box Wall length 190 ft, one per 100: 1.9 box; rounded up to whole box: 2. Bottom plate to slab, about 24 in apart.
• Masonry drill bit 1 each A fixed 1: 1 each.
• Construction adhesive, 28 oz 6 tube Wall length 190 ft, one per 32: 5.94 tube; rounded up to whole tube: 6.

Batt insulation

• R-13 unfaced batts, 23 x 93 in 14 bag Foundation wall area 1,040 sq ft at 77.5 a bag: 13.42 bag; rounded up to whole bag: 14. Unfaced: the foam is the vapor control.
• R-13 sound batts 5 bag Sound-insulated walls 40 ft × Ceiling height 8 ft at 77.5 a bag: 4.13 bag; rounded up to whole bag: 5.

Drywall and finishing

• 1/2 in ultralight drywall, 4x8 69 sheet Wall area 2,000 sq ft at 32 a sheet: 62.5 sheet; plus 10% waste: 68.75; rounded up to whole sheet: 69.
• 1/2 in ultralight drywall, 4x8 35 sheet Finished area 1,000 sq ft at 32 a sheet: 31.25 sheet; plus 10% waste: 34.38; rounded up to whole sheet: 35. Joists 24 in apart take 5/8 in on the ceiling.
• 5/8 in Type X drywall, 4x8 8 sheet Mechanical room enclosure 32 ft × Ceiling height 8 ft at 32 a sheet: 8 sheet. Mechanical room enclosure; check local code.
• Drywall screws 1-1/4 in, 25 lb 1 box Drywall area 3,000 sq ft, one per 3200: 0.94 box; rounded up to whole box: 1.
• Drywall screws 1-5/8 in, 5 lb 1 box A fixed 1: 1 box.
• All-purpose joint compound, 4.5 gal 7 bucket Drywall area 3,000 sq ft, one per 450: 6.67 bucket; rounded up to whole bucket: 7. Three coats.
• Paper joint tape, 500 ft 3 roll Drywall area 3,000 sq ft, one per 1000: 3 roll.
• Metal corner bead, 8 ft 14 each Wall length 190 ft, one per 14: 13.57 each; rounded up to whole each: 14.
• Sanding sponges, pole sander and screens 1 lot A fixed 1: 1 lot.
• Mud pan and knives 1 set A fixed 1: 1 set.
• Access panel, 14 x 14 in 2 each A fixed 2: 2 each. Over any valve, cleanout or damper.
• Acoustic caulk 4 tube Wall length 190 ft, one per 50: 3.8 tube; rounded up to whole tube: 4.

Paint

• PVA drywall primer, 5 gal 2 bucket Drywall area 3,000 sq ft × 1 coat at 1500 a bucket: 2 bucket.
• Interior wall paint, eggshell, 5 gal 2 bucket Wall area 2,000 sq ft × 2 coats at 2000 a bucket: 2 bucket.
• Ceiling paint, flat, 5 gal 1 bucket Finished area 1,000 sq ft × 2 coats at 2000 a bucket: 1 bucket.
• Rollers, trays, brushes, tape and plastic 1 lot A fixed 1: 1 lot.

Flooring

• Insulated subfloor panel, 2x2 300 panel Finished area 1,000 sq ft at 4 a panel: 250 panel; plus 20% waste: 300.
• Perimeter spacer kit 2 kit Foundation wall 130 ft, one per 65: 2 kit.
• Self-leveling compound 6 bag Finished area 1,000 sq ft, one per 170: 5.88 bag; rounded up to whole bag: 6. Check the slab with a straightedge first.
• LVP flooring 1,100 sq ft Finished area 1,000 sq ft: 1,000 sq ft; plus 10% waste: 1,100.
• T-molding transition strip 4 each Interior doors 2 each × 2: 4 each.
• Stair nose trim 1 each A fixed 1: 1 each.

Trim and doors

• Primed baseboard, 3-1/4 in x 16 ft 16 each Baseboard length 244 ft at 16 a piece: 15.25 each; rounded up to whole each: 16.
• Prehung interior door, 32 in 2 each Interior doors 2 each: 2 each.
• Door casing set 2 set Interior doors 2 each: 2 set.
• Finish nails, 16 ga and 18 ga brad 1 lot A fixed 1: 1 lot.
• Paintable caulk 8 tube Baseboard length 244 ft, one per 32: 7.63 tube; rounded up to whole tube: 8.
• Door knob or privacy set 2 each Interior doors 2 each: 2 each.

Electrical

• 20A dual-function AFCI/GFCI breaker 3 each Receptacle circuits 2 each + Lighting circuits 1 each: 3 each. Match the panel brand.
• 12-2 NM-B wire, 250 ft 3 roll Receptacle circuits 2 each + Lighting circuits 1 each: 3 roll.
• 12-3 NM-B wire, 50 ft 1 roll Three-way switches 4 each, one per 4: 1 roll. Three-way switch legs.
• New-work box, 20 cu in 31 each (Receptacles 21 each + Single-pole switches 6 each) + Three-way switches 4 each: 31 each.
• 4 in square box and mud ring 8 each Recessed lights 32 each, one per 4: 8 each.
• 20A tamper-resistant receptacle 21 each Receptacles 21 each: 21 each. Tamper-resistant; check local code for spacing.
• Single-pole switch 6 each Single-pole switches 6 each: 6 each.
• Three-way switch 4 each Three-way switches 4 each: 4 each.
• LED-rated dimmer 4 each Three-way switches 4 each: 4 each.
• Wall plate 31 each (Receptacles 21 each + Single-pole switches 6 each) + Three-way switches 4 each: 31 each.
• 6 in canless LED recessed light, 4-pack 8 pack Recessed lights 32 each at 4 a pack: 8 pack.
• Wire connectors 2 pack A fixed 2: 2 pack.
• Cable staples, 1000 ct 1 box A fixed 1: 1 box.
• Steel nail plate 50 each Wall length 190 ft, one per 4: 47.5 each; plus 5% waste: 49.88; rounded up to whole each: 50. Wherever wire runs near a stud face; check local code.
• Hardwired interconnected smoke and CO alarm 3 each Finished area 1,000 sq ft, one per 400: 2.5 each; rounded up to whole each: 3. Check local code for where alarms go.
• Panel labels and electrical odds and ends 1 lot A fixed 1: 1 lot.

Mechanical and odds and ends

• Supply register and boot 6 each Finished area 1,000 sq ft, one per 170: 5.88 each; rounded up to whole each: 6.
• Duct take-offs, collars, dampers and foil tape 1 lot A fixed 1: 1 lot.
• Return air grille 2 each Finished area 1,000 sq ft, one per 500: 2 each.
• Dehumidifier with condensate pump, 50 pt 1 each A fixed 1: 1 each.
• Fasteners, shims, blades and hardware 1 lot A fixed 1: 1 lot.

Labor

• Drywall hanging and finishing 3,000 sq ft Drywall area 3,000 sq ft: 3,000 sq ft.
• Base trim 244 ft Baseboard length 244 ft: 244 ft.

Contingency

• Allowance 10% allowance 10% of the run's materials cost. Waste, re-buys and what the walls hide.