Maun · SKU 1701-054

Maun Steel Straight Edge Imperial 54″ (1701-054)

Longer reach for wider fabrication and leatherwork.

The Maun Steel Straight Edge Imperial 54″ (1701-054) is a 1372 mm carbon-steel straight edge with a precision-ground bevelled working edge, accurate to 0.001 inch per foot (0.084 mm per metre). UK-made, it’s the size for sheets, frames and hides just wider than four feet.

£126.00inc. VAT · £105.00 ex VATIn stock

Length

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54″ length goes beyond four-foot sheets, panels and hides.
Accurate to 0.001 inch per foot (0.084 mm per metre): within 0.0045 in (0.11 mm) over the full 54″.
Bevelled working edge gives a clear line of sight beyond standard four-foot material.
Robust 3.25 mm carbon-steel body: reassuringly heavy for long, wide work.

Best suited to

Sheets and frames just over four feet wide

UK-madeMade by Maun

12 months’ warrantyOr 2 years when you register it

Stated accuracy0.084 mm per metre

Product description

The 54″ straight edge goes beyond standard four-foot material, giving you one continuous reference where a shorter guide would need moving. Set it once. Work the line. Cut out avoidable alignment errors.

Why the Maun Steel Straight Edge Imperial 54″ (1701-054) works

Accurate work. Less rework.

0.0045 in (0.11 mm)over the full 54″

Over 54″, the bevelled working edge stays within 0.0045 inch (0.11 mm) of true.
It reaches past four-foot material, giving you one known reference where a 48″ tool would need moving.

See the line clearly.

54″of bevelled working edge

The bevel keeps the full 54″ line in view, so you can work right across oversize sheet, frames and hides without losing your mark.

Built for repeated use.

3.25 mmcarbon-steel body

The robust 3.25 mm body gives the 54″ reassuring weight along its length.
Set it once and it stays put while you mark or cut.

Best suited to

Manufacturing & Engineering

Choose the Maun Steel Straight Edge Imperial 54″ (1701-054) for metal sheets wider than four feet, substantial fabricated frames, installation layouts and long gasket material.

The extra reach removes the reset a 48-inch guide would need.
The rigid 3.25 mm steel body, visible bevel and stated straightness tolerance give you exact reference lines and dependable alignment across larger work.

Leatherwork

The Maun Steel Straight Edge Imperial 54″ (1701-054) suits large hides, full-length straps and long leather panels that need a continuous cut beyond four feet.

Its weight steadies the material, the bevel exposes the knife line, and the durable carbon-steel edge resists wear through repeated production work.

Specifications

SKU	1701-054
Length	54″ (1372 mm)
Body	surface-ground carbon steel, 53 mm wide and 3.25 mm thick
Working edge	precision-ground and bevelled
Accuracy	0.001 inch per foot (0.084 mm per metre)
Straightness over its length	within 0.0045 in (0.11 mm) over the full 54″
Storage	6 mm hanging hole; supplied in a wallet with anti-rust paper
Made	UK-made, under our ISO 9001 quality system
Warranty	Standard 12 months’ warranty. Register your tool to extend this to 2 years.
Alternatives	48″ for standard four-foot work; 60″ for five-foot coverage.

The working edge

The bevel runs along the whole of one long edge. You run your scriber or knife against it, so you can see the line as you go.

Frequently Asked Questions

What is a 54-inch steel straight edge used for?

A 54-inch (1372 mm) steel straight edge is for work just beyond four feet: sheets wider than 48 inches, larger fabricated frames, installation layouts, long gasket material, large hides and long leather panels.

Why choose a 54″ over a 48″?

A 54″ gives you three inches of overhang at each end of a 48-inch line. That lets you start and finish the line cleanly, with the edge fully in contact, rather than working right to the tip of the tool. It also covers material that’s slightly wider than four feet.

How accurate is the 54″ over its full length?

The bevelled working edge is accurate to 0.001 inch per foot (0.084 mm per metre): within 0.0045 inch (0.11 mm) over the full 54 inches. That’s practical workshop accuracy for marking, cutting and straightness checks, not a calibrated metrology tolerance.

Last updated 11 November 2026

Content reviewed by Rebekah Jackson, Digital Marketing Executive at Maun Industries Limited, formerly on Maun’s production team, on 21 October 2026. We last checked prices and stock against maunindustries.com on 11 November 2026.

Size check: is 54″ long enough?

It’s long enough for the width of an 8 × 4 ft board (1220 mm) in one pass.
It’s too short for the length of an 8 × 4 ft board (2440 mm). For that, choose the Maun Aluminium Safety Straight Edge 3000 mm (1710-300).
One size down is the Maun Steel Straight Edge Metric 1250 mm (1700-125).
One size up is the Maun Steel Straight Edge Metric 1500 mm (1700-150).

Steel or aluminium: which suits your job?

This straight edge