The #1 Free Estimation Tool
Concrete Wall Calculator
Estimate concrete for retaining walls, foundation walls, and privacy walls.
Enter DimensionsWALL
Interactive Guide
ft
in
ft
in
0.00
Cubic Yards
80lb Bags0
Recommended Tools
- Plywood Forms
- Snap Ties & Wedges
- 2x4 Whalers & Strongbacks
- Form Release Agent
- Rebar
- Concrete Vibrator
First Time Guide
Is this harder than a slab?
Yes, much harder.
Walls require complex formwork that must withstand immense pressure. If a form blows out, you lose all your concrete. This is an advanced DIY project.
difficulty
Before You Start
The Footing First
Walls need a base.
You cannot pour a wall directly on dirt. It must sit on a cured concrete footing with rebar sticking up (dowels) to tie the two together.
prep
Snap Ties
Hold forms together.
You need 'snap ties' and 'wedges' to hold the two sides of your plywood forms together. 2x4 bracing on the outside is not enough.
forms
During the Pour
Vibration is Key
Remove air pockets.
You must use a pencil vibrator. Insert it every 18 inches to settle the concrete. Without this, you will have 'honeycombing' (large holes) when you strip the forms.
pouring
Pour in Lifts
Don't fill to top instantly.
Pour about 2-3 feet deep all the way around, then vibrate. Then do the next 2-3 feet. This prevents the pressure from bursting the bottom of the forms.
safety
After the Pour
Stripping Forms
Wait 24-48 hours.
Carefully remove the forms. Snap off the protruding ties. If there are small honeycombs, patch them immediately with a parging mix while the concrete is 'green'.
finishing
Why Professionals Use This Tool
Built for speed and compliance with industry estimation standards.
ACI Standard Math
Formulas aligned with American Concrete Institute guidelines.
Automatic Buffer
10% safety margin included for subgrade variation.
Mobile Optimized
Fast loading and responsive for job site usage.
Need Professional Help?
Instant Concrete Calculator helps you plan, but large projects often need a pro.