Products / Hardware

Balance System

Spring, spiral, or block-and-tackle systems that support movable sash weight in hung windows.

Spring, spiral, or block-and-tackle systems that support movable sash weight in hung windows. Selection should start with the opening condition, exposure, performance target, code requirements, manufacturer limits, installation details, and the documents needed for pricing or submittal review.

Configurations

How It Comes

Standard Balance System

Baseline balance system configuration for common projects where availability, cost, and straightforward installation matter.

High-Performance Balance System

Upgraded package focused on thermal performance, air and water resistance, durability, acoustics, security, or code-specific requirements.

Commercial / Heavy-Duty Balance System

More robust configuration for larger sizes, higher use, stricter ratings, or institutional and commercial project conditions.

Custom Balance System

Project-specific sizing, finish, hardware, glass, or detailing where a standard catalog unit does not fit the opening.

Applications

Where It's Used

Residential Projects

Balance System products may be used in residential work when the configuration, finish, maintenance expectations, and performance ratings match the opening.

Commercial Projects

Commercial applications should verify traffic level, code requirements, tested assemblies, submittal documents, and serviceability.

Replacement and Retrofit

Retrofit work should confirm existing dimensions, substrate condition, surrounding finishes, and whether the product can be serviced after installation.

Custom or High-Exposure Conditions

Large sizes, severe weather, unusual geometry, coastal exposure, fire ratings, or acoustic goals usually require early manufacturer review.

Selection Guide

How To Specify It

Use these checkpoints when comparing quotes, reviewing submittals, or deciding whether this product type fits the opening.

Opening Fit

Confirm rough opening dimensions, wall or roof assembly, substrate condition, clearances, and whether the product can be installed without field compromises.

Performance Target

Compare tested ratings for the exact product series, not just the general product family. Climate, exposure, and code requirements should drive the target.

Hardware and Accessories

Screens, shades, locks, operators, closers, cylinders, handles, flashing kits, glass options, and replacement parts should be selected before ordering.

Service and Warranty

Review adjustment access, replacement part availability, finish warranty, glass warranty, and manufacturer installation requirements.

Material / Finish

Stainless Steel Balance System

Stainless steel resists corrosion and is preferred for coastal, humid, and high-use exterior hardware.

Advantages
  • Strong corrosion resistance
  • Durable under frequent use
  • Good for exposed hardware
Considerations
  • Higher cost
  • Finish matching can be limited
  • Grade selection matters

Material / Finish

Brass / Bronze Balance System

Brass and bronze provide premium finish quality and good corrosion behavior for visible hardware.

Advantages
  • Premium appearance
  • Good corrosion resistance
  • Long finish tradition
Considerations
  • Can patina
  • Higher cost
  • Finish maintenance may be desired

Material / Finish

Zinc / Coated Steel Balance System

Zinc die-cast and coated steel parts are common in residential locks, operators, rollers, and internal mechanisms.

Advantages
  • Cost effective
  • Widely available
  • Works well in protected components
Considerations
  • Corrosion protection varies
  • Lower-grade parts wear faster
  • Not ideal for severe exposure

Material / Finish

Aluminum Balance System

Aluminum hardware and housings reduce weight and coordinate with aluminum window and door systems.

Advantages
  • Lightweight
  • Good finish options
  • Compatible with aluminum systems
Considerations
  • Thread strength must be designed
  • Can corrode galvanically
  • Lower wear resistance than steel in some uses

Material / Finish

Engineered Polymer Balance System

Nylon, acetal, and other polymers are used for rollers, guides, bushings, covers, and low-friction parts.

Advantages
  • Quiet operation
  • Low friction
  • Corrosion-proof
Considerations
  • Heat and UV limits vary
  • Load rating matters
  • Can deform if underspecified

Performance & Ratings

At a Glance

Primary specification focus
Function, handing, backset, load rating, cycle rating, corrosion resistance, finish, fasteners, routing template, and replacement compatibility
Performance ratings
ANSI/BHMA grade, cycle count, load rating, corrosion resistance, finish durability, accessibility, and forced-entry performance where applicable
Common standards
ANSI/BHMA standards, manufacturer cycle testing, corrosion testing, ADA requirements, and forced-entry tests where applicable
Documentation to request
Product data, installation instructions, warranty, available test reports, finish options, accessory list, and shop drawings for custom or large conditions
Admin coordination
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Project Coordination

Details To Confirm Early

01

Verify compatibility before ordering

Backsets, handing, mounting holes, routing templates, and manufacturer-specific parts must match the system.

02

Account for exposure

Coastal, pool, commercial, and high-humidity environments need upgraded corrosion resistance and finish durability.

03

Keep service access available

Rollers, locks, operators, and closers should be adjustable or replaceable without destructive work.

Product Questions

Common Questions

What should I compare first when selecting balance system?

Start with the opening condition and required function, then compare tested performance, size limits, materials, hardware, installation details, and warranty terms.

Can balance system be used in any opening?

No. Size, exposure, code requirements, structural support, hardware compatibility, and manufacturer limits determine whether it is appropriate.

What should be confirmed before ordering?

Confirm final dimensions, handing or operation, finish, glass or material makeup, accessories, installation method, lead time, and required submittal or test documentation.

Related Resources

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