Concrete form size guide
Read the height, length, and quantity correctly.
A little notation can cause an expensive mistake. Here is exactly what the listed sizes and quantities mean on Ohio Metal Forms.
Read height first, length second
A label such as 6" × 10' means the piece is 6 inches high and 10 feet long. Choose the height required for the concrete edge, then count how many individual sections the run needs.
Corner labels show the height of the Ohio Metal Forms straight section they are made to fit. A 6-inch corner should be ordered with 6-inch straight forms.
Quantity always means pieces
Quantity 4 on a 6" × 10' straight form adds four individual 10 ft sections. It does not add four feet or 40 feet as one continuous form.
Know what each product contributes
| Product | Listed length | Use | Matching rule |
|---|---|---|---|
| Straight form | 10 ft | Straight run | Choose required edge height |
| Flexible form | 10 ft | Curved run | Choose required edge height; call about tight radiuses |
| Filler | 5 ft | Odd-length adjustment | Match the straight-form height |
| Corner | One corner | 90-degree turn | Match the straight-form height and connection direction |
Separate the order by height
If one job uses 4-inch forms and another part uses 6-inch forms, calculate each group separately. Do the same for straight and curved footage. This keeps the quantity list easy to review and helps prevent mismatched accessories.
Hardware is not automatically included
Each quantity adds only the listed form piece. Pins, stakes, and other jobsite hardware are not automatically added. Do not assume parts from another forming system will fit.
Before you pay
- Confirm the required concrete edge height.
- Separate straight footage from curved footage.
- Count every 90-degree corner.
- Identify odd-length adjustments.
- Verify every quantity is a piece count.
- Call before mixing brands or forming systems.
Next step
Estimate the section count.
Use the quantity planner as a starting point, then let us check any unusual layout.