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Set Formwork Height for Proper Slab Thickness

1:24
2:59
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At 1:24 in

Which porch fails? 🤔 learn how to build a porch! #porch #concrete #formwork #learn

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What happens here

Set your formwork at the correct height to ensure the concrete slab achieves adequate thickness. If the formwork is too low, the resulting concrete will be thin and weak, making it susceptible to cracking and easy breakage. A proper thickness ensures durability and structural integrity.

Goal: Ensure the concrete slab is of adequate thickness to prevent weakness.

Tools and materials

  • Jackhammer Makita — Demonstrating the weakness of a thin concrete slab
  • Sledgehammer — Demonstrating the weakness of a thin concrete slab

What they say

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hit the flashing and your sheathing will stay dry. If this formwork doesn't get pitched away from the house, water will flow back towards your house. Pitch it away from the house, water will run away from your house. If we set our formwork too low, your concrete will be thin and weak. If we attach our formwork with nails, these forms will be hard to pull. If you're going to order over a half yard of concrete, just order a truck. If your concrete's too wet, it could be weaker

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