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The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm)
For Inch versions, directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.
For Inch versions, directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.
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8 Inch Block Calculator |
200 Series Block Types |
200 Series Calculator |
100 Series Calculator |
Concrete Block Miter Cuts |
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Calculate matching cut & off-cut sizes in concrete block walls with mitered corners - Halve your cutting!
Off-cut works 1/2 bond |
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Print and use the tables below to find optimal set out and cutting of mitered corners in concrete block walls.
Mouse over individual table entries (wall lengths) for a description of cuts, stretchers and fractions, to optimize cutting and off-cut re-use. Click entries to draw a bond diagram (below table) Using these tables with correct cut sizes allows re using the offcuts (half bond next course). Save half your cutting and eliminate waste. |
Angle
| Angle | Series | Type |
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Setback
Difference in length front and back of a block to make the correct angle
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Stretcher Match
Cut a stretcher and the offcut (below) will go next course half bond
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3/4 Match
Cut a 3/4 and the offcut (below) will go next course half bond
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Str 3/4 Match
Cut a stretcher and use a 3/4 and the offcut (below) will go next course half bond
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Mouse over entries for description - click for bond diagram.
| Length | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |
Click individual table entries to draw corresponding bond diagram.
For a wall that goes from a miter cut corner to another miter cut corner, find the entry for the wall length in the table above. Eg: for a wall 2720mm long, mitered corner to mitered corner, find 2700 in the left column and go across to the 20 (top row) to find 5 350. This entry is in blue, so exactly matches a Stretcher-Match. Start a Stretcher Match (cut 350 back to 240), then go 5 stretchers and the last cut is another Stretcher-Match. You've re-used all your off-cuts for Zero Waste, and HALVED YOUR CUTTING
Always start with a Stretcher-Match, and try to find a length that suits a Stretcher-Match (blue) or a (green) ThreeQuarter-Match (a 3/4 cut instead of a stretcher) at the other end.
If the wall goes from a square end or corner to a Miter, select the 'Square to Angle' Radio Button. You can often open or tighten bond slightly to find a length that will match off-cuts both ends.
If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - theres dust in the spray mist too!
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Create PDF to print diagrams on this page. Help Printing Help (new window)
Copy all diagrams on this page to bottom of page - Make multiple copies to Print or Compare.
View page on Phone via QR Code (Not current calculation result)
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Inch or Metric?
👈
👈
The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm)
Directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.
Directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.
|
Metric Calculator |
| Inch |
Please help promote this free service
Tell a Friend!
Tell a Friend!
blocklayer.com
Real Life Online On-Site Calculators with To Scale and Full Scale Animated Detailed Diagrams and Printable Templates
for all Construction Tasks + Woodwork Metal Work and Craft
All calculators on this site are geometric only.
Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.
Disclaimer | Privacy & Cookie Policy
Copyright © 2021 - blocklayer.com