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I will crawl space to basement conversion, structural underpinning design
James
About this gig
I will design the structural underpinning plan needed to convert your crawl space into a full basement. Here is how I will approach it. I will start by reviewing your existing foundation type, crawl space height, and the depth you want to excavate to understand the scope of the dig out.
Next I will develop a temporary shoring plan to safely support the existing structure while excavation takes place. From there I will design the new reinforced concrete stem walls and underpinning sequence needed to carry the home's load down to the new basement floor level. I will then prepare the complete structural drawing set formatted for contractor use and permit submission.
After this process, you will receive a full underpinning and shoring plan with stem wall details, giving you a safe, code compliant path to expand your home downward into a full basement.
If this sounds like what you need, message me before placing your order so we can go over your existing foundation and excavation goals first.
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Get to know James
James
Structural Designer, Foundation Repair and Load Analysis
- FromUnited States
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English
Structural design specialist focused on repair, retrofit, and load analysis for residential and agricultural structures. I provide solar panel roof load reports, crawl space-to-basement underpinning designs, barndominium and post-frame structural plans with wind load calculations, and foundation crack repair with retaining wall design. Drawings and reports are built to pass jurisdictional review, with clear documentation contractors and homeowners can act on immediately. Fast turnaround, accurate calculations, no back-and-forth.
FAQ
Is this type of conversion safe for older homes?
It can be, but the shoring and underpinning sequence needs to be carefully designed around the home's existing foundation, which I account for in the plan.
Do you provide the excavation sequencing or just the structural drawings?
I provide the structural underpinning and shoring drawings; excavation sequencing on site is typically coordinated with your contractor.
