Direct answer

Consistency across a multi-site program depends less on naming a single manufacturer once and more on how the specification is written and enforced across every project in the program. A basis of design specification names a specific product to establish the performance and quality standard and using the identical basis of design product, configuration and acceptable-manufacturers language on every project in a rollout is what actually produces a consistent result, not just a shared CSI section number.

Because standard or equal language is designed to let a contractor substitute a comparable product from another manufacturer on any individual project, a program that wants true consistency across locations needs to either tighten or remove that language for the ladder section, or actively manage substitution requests centrally rather than letting each site’s contractor make an independent call. Consistency also depends on repeating the same configuration, finish and hardware standard project after project, not just the same manufacturer name.

Why a shared CSI section alone doesn’t guarantee consistency

Referencing the same CSI MasterFormat section, 05 51 33, on every project in a multi-site program establishes a common framework for organizing the specification, but it does not by itself guarantee that the ladder installed at one site matches the ladder installed at another.¹ Two projects can both cite Section 05 51 33 and still end up with different manufacturers, configurations and finishes if the basis of design product and acceptable-manufacturers language are not held constant across the program.

Basis of design and or equal language across a rollout

A basis of design specification names a specific product to establish the performance and quality standard the section is written around, and or equal language is what allows a contractor to propose a comparable product from a different manufacturer on any given project.² For a single project, that flexibility is often useful, but across a multi-site program it is also the mechanism through which consistency erodes from site to site, since each project’s contractor can make an independent substitution decision unless the program actively manages it.

When sole-sourcing a manufacturer is the more reliable path

Some public agencies address this directly by sole-sourcing a specific product across a facility or program to standardize equipment, rather than allowing an or equal substitution on each individual project.³ A private multi-site program can apply the same logic to a fixed ladder specification: naming a single manufacturer without an or equal clause is a more reliable way to guarantee the same product across every site than relying on a basis of design approach and hoping each project’s substitution decisions align.

A specifier setting up a national program can start this process through Alaco Ladder’s request-a-quote page to establish a single point of contact for pricing and configuration across every site.

Standardizing the configuration, not just the manufacturer

Consistency also depends on holding the ladder’s configuration, angle, finish and hardware standard from project to project, not just the manufacturer name.

A program that specifies the same manufacturer but leaves configuration details open to each site’s design team can still end up with meaningfully different ladders across locations, which undermines the maintenance, parts and training benefits a consistent program is usually trying to achieve.

Managing substitution requests centrally across a program

Because consistency drift tends to emerge site by site rather than all at once, a program with many locations benefits from a centralized review of substitution requests and configuration changes rather than leaving each decision to an individual project team.⁴ Establishing this review early, before the rollout begins, is more effective than trying to correct inconsistency after several sites have already been built to different specifications.

Reusing the same published drawings and specifications, such as those centralized on Alaco Ladder’s Architects Corner page, across every project in a program is one practical way to keep site teams working from an identical baseline rather than redrafting details project by project.

What to ask a manufacturer about a multi-site program

• Can the manufacturer serve as a single point of contact for pricing and configuration across every site in the program?
• Does the manufacturer’s standard documentation stay consistent enough to be reused across multiple projects without redrafting?
• How does the manufacturer handle a substitution or configuration request that would break consistency with previously completed sites?
• Can the manufacturer confirm the same configuration, finish and hardware were actually installed at each completed site?

Key takeaway

A shared CSI section number does not by itself keep fixed ladders consistent across a multi-site program; the basis of design product, or equal language, and configuration details need to be held constant and actively managed across every project.

Naming a single manufacturer without an or equal clause, standardizing configuration details beyond just the manufacturer name, and centralizing substitution review are all more reliable paths to consistency than assuming a shared specification section will produce a matching result site to site.

Glossary

• Basis of design: The specific product named in a specification to establish the quality standard for a work result, typically alongside a short list of acceptable equivalents.
• Or equal: Contract language permitting a contractor to propose an alternative product meeting the same performance requirements as the specified item.
• Sole source: A specification approach naming a single acceptable manufacturer or product with no substitution allowed.
• Consistency drift: The gradual divergence of installed conditions across multiple sites in a program, even when each site starts from a shared standard.
• Prototype specification: A standardized specification developed once and intended for reuse across multiple similar projects in a program.

References

1. “MasterFormat.” Construction Specifications Institute. Accessed August 10, 2026. https://www.csiresources.org/standards/overview/.
2. “Basis of Design and Substitutions Simplified.” ZeroDocs. Accessed August 6, 2026. https://zerodocs.com/basis-of-design-3-part-specification/.
3. “16.4 Substitution and ‘Or Equal’ Proposals.” Bureau of Engineering, City of Los Angeles. Accessed August 6, 2026. https://projectdeliverymanual.engineering.lacity.gov/chapter-16-construction-management-procedures/164-substitution-and-or-equal-proposals/.
4. “National Rollout Program Management: Your Strategic Guide.” Permit Place. Accessed August 6, 2026. https://permitplace.com/national-rollout-program-management/.