HOOLIEHAUSHouse Plans & 2D CAD Blueprints
Browse Plans
18' × 32' Shell • 12 Floor Plans

18' × 32' Floor Plans (576 Sq Ft Base)

Compare 12 build-ready ways to configure a 18-foot by 32-foot structure—including all-living homes, shop-house splits, and 2-story lofts.

18x32 House Exterior
12 Plans
Shell Est: $27,500
View Plan
Shell Est: $27,500
View Plan
Shell Est: $39,000
View Plan
Shell Est: $39,000
View Plan
Shell Est: $26,000
View Plan
Shell Est: $26,000
View Plan
Shell Est: $25,000
View Plan
Shell Est: $25,000
View Plan
Shell Est: $28,500
View Plan
Shell Est: $28,500
View Plan
32' × 18'+ Shop Bay
Garage with Loft / Apartment AbovePlan HG-1123

576 Sq Ft (18x32) 1 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above

738
Sq Ft
1
Beds
1
Baths
414
Shop SF
Shell Est: $37,500
View Plan
32' × 18'+ Shop Bay
Garage with Loft / Apartment AbovePlan HG-1124

576 Sq Ft (18x32) 2 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above

738
Sq Ft
2
Beds
1
Baths
414
Shop SF
Shell Est: $37,500
View Plan

18' × 32' Build Cost Guide, Nearby Sizes & FAQs

Slab takeoff, framing span notes, and comparable footprint sizes

Nearby Footprint Sizes:12'×28' (336 sf)12'×32' (384 sf)14'×24' (336 sf)14'×28' (392 sf)14'×32' (448 sf)14'×36' (504 sf)14'×40' (560 sf)16'×24' (384 sf)

18' Clear-Span Truss & Slab Engineering

A 18' × 32' rectangular building envelope (576 sq ft base area, 100 linear feet of exterior wall) is one of the most cost-effective structural modules in residential construction. Because the 18-foot width can be spanned by single-piece prefabricated wood roof trusses or cold-formed steel rafters, interior walls are non-load-bearing—allowing complete flexibility between open great rooms, split bedroom wings, and drive-in garage bays.

Material Takeoff Baseline (9 Cu. Yds. Concrete / 7 Roof Squares)

Every 4-corner 18x32 layout eliminates expensive hip-and-valley roof framing and minimizes foundation form corners. Builders typically budget 9 cubic yards of 4,000-PSI concrete for the monolithic slab, 85 exterior 2x6 studs (or 13 laminated post-frame columns at 8' o.c.), and 7 squares of standing-seam or ribbed metal roofing.

How many bedrooms and bathrooms fit inside a 18x32 (576 sq ft) floor plan?

A 18' × 32' building footprint (576 sq ft base area) comfortably supports 1 to 2 bedrooms and 1 bathroom in an open-concept ADU, tiny home, or cabin configuration. Browse all 12 vetted 18x32 floor plan variations above to compare room sizes.

How much concrete and roofing material does a 18x32 building require?

A 18' × 32' footprint has 100 linear feet of exterior perimeter wall. Pouring a 4-inch monolithic concrete slab with thickened perimeter grade beams requires approximately 9 cubic yards of ready-mix concrete. A standard gable roof with 18-inch overhangs requires roughly 7 roofing squares (700 sq ft of metal or shingle coverage).

What is the average cost to build a 18x32 house or barndominium?

Across our 12 engineered 18x32 blueprints, dried-in structural shell packages range from $17,280 to $27,648, while full turnkey construction averages $123,000 depending on whether the footprint is configured as all-living space or split between living quarters and an unheated shop bay.