Choosing Railings for Commercial Staircases and Public Buildings

Start with the code and the building's requirements

Every commercial stair railing has to satisfy the safety requirements that apply to the building, and in Israel the railing standard SI 1142 is the usual reference point. Before you look at styles, collect the requirements that apply to your project: the building type, the number of users, the stair width, and any accessibility or fire-safety obligations.

Exact heights, post spacing, and load values depend on the specific design, so have the structural or safety engineer confirm them in writing. Keeping that confirmation on file also makes inspections and approvals much smoother.

Pick the right material for heavy public use

Public stairs see far more traffic than private ones, so the material has to tolerate constant contact, cleaning, and occasional impact. Common options include steel, stainless steel, and aluminum, each with different strength, weight, and look.

• Steel offers strength and value and suits most structural applications.
• Stainless steel resists corrosion and works well in humid or exposed areas.
• Aluminum is light and corrosion resistant, useful where weight matters.

Match the material to the environment, not only to the appearance.

Decide on height, infill, and openings

The railing's height and the spacing of its infill determine both safety and how the stair looks. Infill should be designed so that small children cannot pass through or become trapped, and openings should not allow objects to fall easily from the stair.

Common infill options

• Vertical bars at controlled spacing
• Horizontal rails, which need careful design to avoid climbing hazards
• Glass panels with appropriate fixings and safety glazing

Ask the engineer to confirm the exact spacing and height for your building type.

Plan the finish and corrosion protection

A finish that looks good on day one may not survive years of traffic, cleaning, and weather. For steel railings, hot-dip galvanizing followed by powder coating is a strong combination, because the galvanized layer protects the metal and the coating adds color and an extra barrier against wear.

Consider how the surface will be cleaned. Smooth, sealed finishes are easier to maintain in public buildings, and fewer crevices mean less dirt and fewer places for corrosion to start.

Specify handrails and accessibility details

Handrails are used constantly, often by people who depend on them for balance. Specify a comfortable diameter, a continuous run along the full length of the stair, and extensions at the top and bottom where the design requires them. Make sure the handrail contrasts visually with the wall or background so it is easy to see.

Consider both sides of the stair where the layout allows, and confirm the exact requirements with the engineer and the local authority.

Document the specification and approve it before production

A clear written specification protects both the owner and the fabricator. Include drawings, materials, finishes, heights, infill details, fixing method, and the standards the design must meet. Review the drawings with the architect, the engineer, and the building committee or client before production begins.

• Measure on site rather than relying only on plans.
• Record every approved change in writing.
• Confirm installation access and fixing points before work starts.

Frequently asked questions

What standard applies to commercial stair railings in Israel?

The railing standard SI 1142 is the common reference for railings in Israel. Your engineer should confirm which requirements apply to your specific building and use.

Which material is best for a busy public staircase?

Steel with a galvanized and powder-coated finish is a strong choice for most public stairs. Stainless steel suits humid or highly exposed locations where corrosion is a concern.

Should I use glass or metal infill?

Both can work well when designed correctly. Glass suits a modern look and good visibility, while metal bars are robust and simple to maintain, and the choice should be confirmed with the engineer.

Do I need an on-site measurement before ordering?

Yes, an on-site measurement is recommended because it captures the actual stair geometry and fixing conditions. Plans alone can miss small differences that affect fit and safety.

Common mistakes to avoid

Choosing a railing by appearance alone, or skipping the engineer's confirmation of height, spacing, and loads, often leads to rework and safety issues. Ordering before the specification is approved is another common and costly error.

Our recommendation

Involve the engineer and the fabricator early, measure on site, and get every requirement and approved drawing in writing before production starts. For public buildings, prioritize corrosion protection and easy cleaning alongside code compliance.

Summary

A good commercial stair railing meets the applicable standard, suits heavy public use, and is finished for durability and easy maintenance. Confirm dimensions and loads with your engineer and approve a written specification before production.

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