The short version: If your stairs have a railing on only one side, add a second on the wall side. Code-required in most jurisdictions and meaningfully reduces senior fall risk. Promenaid modular handrail is the easy DIY pick at about $55 per linear foot installed.

Why a second railing matters

The CDC data on senior stair falls shows most happen during descent and most when the user is using only one handrail.3 A handrail on both sides reduces fall risk by enabling the user to use both hands when needed.

ICC A117.1 requires handrails on both sides of stairs in accessible buildings.1 For senior homes, this is a code-friendly safety upgrade.

What makes a good railing

  • Graspable profile: 1.25-2 inch diameter round or oval. Square decorative profiles often fail the grasp test.
  • 34-38 inch height above the stair tread nose.
  • Continuous along the full stair run: ends in a return to the wall (not an open end that can catch sleeves).
  • Mounted to studs or wall framing: must hold 200 pounds of pull load without movement.1
  • Extends at least 12 inches past top tread, 12 inches past bottom tread: gives a hand-hold during the transition off the stairs.

Our picks

1. Promenaid Modular Handrail: best DIY pick

Promenaid sells a continuous-rail aluminum system with brackets for any wall. Round profile, code-compliant, ships pre-cut to your specified length. About $55 per linear foot installed.

Why we pick it: 1.25-inch round profile meets ICC A117.1 grasp requirement. Modular brackets handle wall transitions and short corners. DIY-friendly (one drill, basic stud finder).

2. Custom hardwood handrail

A carpenter installs an oak or maple handrail to match your home’s style. About $25-$40 per linear foot installed.

Why we pick it: matches existing aesthetic in homes with finished interiors. Permanent and elegant.

3. ADA-compliant aluminum handrail

Plain commercial aluminum (similar to commercial buildings). About $20 per linear foot installed.

Why we pick it: cheapest. Often acceptable in basement stairs or back-of-house locations. Looks institutional in primary living areas.

Install requirements

  • Mount into wall framing (studs) or use rated toggle bolts.
  • 200 pound pull load minimum.
  • Bracket spacing: usually 32 inches max apart for code compliance.
  • Continuous along the stair, no gaps wider than 4 inches.

For toggle bolt approach (similar to grab bars), see how to install a grab bar yourself, same technique applies.

What to do next

If your stairs have only one railing: install a second on the wall side this weekend. Promenaid is the easy DIY pick.

If your stairs have railings on both sides but they’re decorative: confirm the profile passes the 1.25-2 inch grasp test. Replace if not.

For broader strategy, see best stair lifts of 2026, for some users, a stair lift complements rather than replaces a second railing.

The 30-second summary:
  • Both sides of stairs need handrails for senior safety and code compliance.
  • 1.25-2 inch round or oval profile, 34-38 inches off the tread nose.
  • Promenaid modular handrail is the easy DIY pick at $55/linear foot installed.
  • Mount into framing or rated toggle bolts. 200 lb pull load minimum.