The string line block named after the bricklayer who invented it
The best tools often come from the people using them every day. The Dori Block is exactly that — Dorian, a working bricklayer, brought the idea to BT Engineering, and it’s now one of the most widely used string line blocks in the bricklaying trade.
What it does
A Dori Block sits on the profile and holds two string lines running in both directions at once — meaning you can set your corner and your return at the same time, with the string lines locked in true position. No more juggling pins, no more losing tension when a line catches on something.
Why it matters for your work
- Two string lines, one block — set both directions simultaneously
- Fits 50.8mm UK profiles — sized for standard box-section profiles
- Faster setup than pins — especially on corners and returns
- Zinc-plated — resists corrosion on wet sites
Specifications
- Fits 50.8mm (2″) UK bricklaying profiles
- Holds two string lines running both directions
- Zinc-plated finish
- 12-month warranty
Also available in the improved Long Sided version (UDBL), the Dentil version (10022) for dentil brickwork, and a lightweight Plastic version (DB PLASTIC). Proudly Australian-made and owned. Part of BT Engineering’s complete bricklaying profile system.
The best way to continuously string a line on a 135 degree wall. I like that the screw that tightens the block to the pole is offset from the middle so you are tightening on the “strong” part of the pole.
Last years good quality
Good quality product