Holed Bars - Pre-Punched Balustrade Infill

Pre-holed and slotted steel infill bars for balustrades and railings - holes punched at set spacings so your infill bars pass through at an even, compliant 100mm gap. Saves measuring and drilling every hole by hand. Square holes, round holes and slotted versions to suit square, round and flat infill.

What Are Holed Bars?

Steel bars (flat, round or hollow) with holes or slots punched at regular spacings. Your vertical infill bars or balusters pass through the holes, giving perfectly even spacing. The hole positions are set to give a 100mm finished gap - the standard maximum for guarding under UK Building Regulations.

Choosing the Right One

Match the hole to your infill: square holes for square bar, round holes for round bar, slots for flat bar. The size shown (e.g. 16mm round holes) is the hole size, which suits the matching infill bar. Choose from the dropdown.

Common Uses

Balustrade and railing infill frames, guarding to stairs, landings and balconies, juliet balconies, and any railing needing evenly-spaced compliant infill.

Frequently Asked Questions

What are holed bars for?
Holed bars (drilled or punched infill bars) are pre-made balustrade and railing components with holes or slots at set spacings. The infill bars or balusters pass through the holes, so you get even, code-compliant spacing without measuring and drilling every hole yourself.

What does '100mm gap' mean?
It means the holes are positioned so the finished gap between the bars passing through them is 100mm - the standard maximum gap for guarding under UK Building Regulations, so a 100mm sphere cannot pass through. This makes them ideal for compliant balustrades and railings.

Square holes or round holes?
Match the hole to the infill bar you are using - square holes for square bar, round holes for round bar. Slotted versions take flat bar. Check the size in the option (e.g. 16mm round holes take 16mm round bar).

What is it used for?
Balustrade and railing infill frames, guarding, juliet balconies, and any railing where evenly-spaced vertical bars are needed at a compliant 100mm gap.