Backyard ADU / Granny FlatPlan HG-1219
616 Sq Ft (22x28) 1 Bed 1 Bath Backyard ADU / Granny Flat Floor Plan
616
Sq Ft
1
Beds
1
Baths
22x28
Shell
Shell Est: $28,500
22' × 28' Shell • 12 Floor Plans
22' × 28' Floor Plans (616 Sq Ft Base)
Compare 12 build-ready ways to configure a 22-foot by 28-foot structure—including all-living homes, shop-house splits, and 2-story lofts.
12 Plans
12 Plans
Backyard ADU / Granny FlatPlan HG-1220
616 Sq Ft (22x28) 2 Bed 1 Bath Backyard ADU / Granny Flat Floor Plan
616
Sq Ft
2
Beds
1
Baths
22x28
Shell
Shell Est: $28,500
A-Frame CabinPlan HG-1221
882 Sq Ft (22x28) 1 Bed 1 Bath A-Frame Cabin Floor Plan with Loft
882
Sq Ft
1
Beds
1
Baths
22x28
Shell
Shell Est: $40,000
A-Frame CabinPlan HG-1222
882 Sq Ft (22x28) 2 Bed 1 Bath A-Frame Cabin Floor Plan with Loft
882
Sq Ft
2
Beds
1
Baths
22x28
Shell
Shell Est: $40,000
Modern CabinPlan HG-1223
616 Sq Ft (22x28) 1 Bed 1 Bath Modern Cabin Floor Plan
616
Sq Ft
1
Beds
1
Baths
22x28
Shell
Shell Est: $27,500
Modern CabinPlan HG-1224
616 Sq Ft (22x28) 2 Bed 1 Bath Modern Cabin Floor Plan
616
Sq Ft
2
Beds
1
Baths
22x28
Shell
Shell Est: $27,500
Modular / Prefab CottagePlan HG-1225
616 Sq Ft (22x28) 1 Bed 1 Bath Modular / Prefab Cottage Floor Plan
616
Sq Ft
1
Beds
1
Baths
22x28
Shell
Shell Est: $26,500
Modular / Prefab CottagePlan HG-1226
616 Sq Ft (22x28) 2 Bed 1 Bath Modular / Prefab Cottage Floor Plan
616
Sq Ft
2
Beds
1
Baths
22x28
Shell
Shell Est: $26,500
Tiny Home on FoundationPlan HG-1227
616 Sq Ft (22x28) 1 Bed 1 Bath Tiny Home on Foundation Floor Plan
616
Sq Ft
1
Beds
1
Baths
22x28
Shell
Shell Est: $30,000
Tiny Home on FoundationPlan HG-1228
616 Sq Ft (22x28) 2 Bed 1 Bath Tiny Home on Foundation Floor Plan
616
Sq Ft
2
Beds
1
Baths
22x28
Shell
Shell Est: $30,000
Garage with Loft / Apartment AbovePlan HG-1229
616 Sq Ft (22x28) 1 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above
814
Sq Ft
1
Beds
1
Baths
418
Shop SF
Shell Est: $40,000
Garage with Loft / Apartment AbovePlan HG-1230
616 Sq Ft (22x28) 2 Bed 1 Bath Garage with Loft / Apartment Above Floor Plan with Apartment Above
814
Sq Ft
2
Beds
1
Baths
418
Shop SF
Shell Est: $40,000
22' × 28' Build Cost Guide, Nearby Sizes & FAQs
Slab takeoff, framing span notes, and comparable footprint sizes
22' × 28' Build Cost Guide, Nearby Sizes & FAQs
Slab takeoff, framing span notes, and comparable footprint sizes
Nearby Footprint Sizes:12'×32' (384 sf)14'×28' (392 sf)14'×32' (448 sf)14'×36' (504 sf)14'×40' (560 sf)16'×24' (384 sf)16'×28' (448 sf)16'×30' (480 sf)
22' Clear-Span Truss & Slab Engineering
A 22' × 28' rectangular building envelope (616 sq ft base area, 100 linear feet of exterior wall) is one of the most cost-effective structural modules in residential construction. Because the 22-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 (10 Cu. Yds. Concrete / 8 Roof Squares)
Every 4-corner 22x28 layout eliminates expensive hip-and-valley roof framing and minimizes foundation form corners. Builders typically budget 10 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 8 squares of standing-seam or ribbed metal roofing.
How many bedrooms and bathrooms fit inside a 22x28 (616 sq ft) floor plan?
A 22' × 28' building footprint (616 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 22x28 floor plan variations above to compare room sizes.
How much concrete and roofing material does a 22x28 building require?
A 22' × 28' footprint has 100 linear feet of exterior perimeter wall. Pouring a 4-inch monolithic concrete slab with thickened perimeter grade beams requires approximately 10 cubic yards of ready-mix concrete. A standard gable roof with 18-inch overhangs requires roughly 8 roofing squares (800 sq ft of metal or shingle coverage).
What is the average cost to build a 22x28 house or barndominium?
Across our 12 engineered 22x28 blueprints, dried-in structural shell packages range from $18,480 to $29,568, while full turnkey construction averages $130,417 depending on whether the footprint is configured as all-living space or split between living quarters and an unheated shop bay.