Cartwright Construction LLC

Building

30x40 Building

30x40, 1,200 sq ft, 10 ft walls

A 1,200 sq ft building-only post-frame package with 26-gauge metal roof and siding, two garage doors that are each 9 ft wide by 8 ft tall, one walk door, and three windows. Slab, insulation, power, permit fees, inspections, taxes, and delivery are priced separately.

Published starting price$44,500

Qualified project fit

Project fit starts with the site.

Call or email when you can share the property city or address, intended use, approximate budget, funding path, and target construction window.

30x40 Building concept rendering
Concept rendering. Final plans, openings, colors, and site layout are confirmed for the project.

Published base scope

What the starting price covers

The signed specifications identify final selections, quantities, allowances, and exclusions.

Concrete and comfort

Choose the slab package by size

Final thickness, reinforcement, base, edges, and concrete strength follow the confirmed loads, soils, use, local requirements, and approved plans.

Base slab

4-inch reinforced option

$19,200

1,200 sq ft slab footprint.

Open slab estimate
Thickness upgrade

6-inch reinforced slab

+$4,800

Complete thickness-upgrade price for the 1,200 sq ft slab shown above.

Add 6-inch slab
Heated-floor option

Hydronic radiant heat

+$22,300

Planning allowance for 1,200 heated sq ft. Includes under-slab insulation, PEX, manifolds, controls, and a sized heat source.

Add radiant heat

Radiant pricing assumes a new slab and is finalized after heat-loss design, zoning, utilities, and equipment selection. Site preparation, foundations, thickened edges, equipment pads, and special loading requirements are confirmed in the project scope.

All available add-ons

Options for this model

Each option below links to this exact building in the estimator. Prices shown are planning adjustments to the published base scope.

200-amp panel and building electrical

+$9,500

200-amp panel and base interior wiring sized for this 1,200 sq ft building, including lighting, receptacles, and two door-opener circuits. Utility connection, trenching, feeder conductors, and the power run to the building are priced separately.

Configure this option

R-19 wall and R-30 roof insulation

+$9,500

Fiberglass liner system with white vapor-retarder facing. Interior metal liner panels are priced separately.

Configure this option

12 ft open lean-to, 480 sq ft

+$14,400

Open roof extension across the full building length. Concrete is priced separately.

Configure this option

Door and window changes

Priced in estimator

Choose the garage-door count and size from 9x8 through 14x14, the exterior-door count and size, and up to 12 windows with sizes from 24x36 through 48x60. The estimator applies additions or credits against the standard package.

Configure openings

Project request

Prepare this model for your property.

Configure the model, provide the property details, and send the request. We review the site and scope before confirming the complete contract price.