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SafeSmart Access Planning
Find the Right AdjustaStairs™ Model
Choosing the right AdjustaStairs™ starts with one key measurement: the vertical reach height from the lower walking surface to the upper landing or access point.
AdjustaStairs™ are height-adjustable stair systems used for trenches, slabs, decks, mezzanines, excavations and changing jobsite elevations. Use this guide to estimate the model that may fit your project, then confirm the final configuration with TPR Industrial.
Step One
Measure the Vertical Reach Height
Measure the actual vertical distance between the lower walking surface and the upper landing or access point. This measurement is the starting point for estimating the AdjustaStairs™ model your project may require.
Identify the Lower Surface
This may be the bottom of a trench, lower slab, ground level or work platform.
Identify the Upper Landing
This is the deck, slab, mezzanine, platform or access point crews need to reach.
Measure Straight Up
Record the vertical rise between the two surfaces, not the diagonal stair length.
Measure the Vertical Rise
Do not measure along the stair angle.
Common Measurement Points
| Application | Measure From | Measure To |
|---|---|---|
| Trench access | Bottom of trench | Top edge or landing area |
| Slab access | Lower slab | Upper slab elevation |
| Deck access | Ground or lower platform | Deck height |
| Mezzanine access | Floor level | Mezzanine landing |
| Temporary jobsite access | Lower work area | Upper platform or structure |
For best results, measure the actual vertical rise instead of relying on drawings alone. Jobsite elevations and conditions can change throughout excavation, concrete and multi-phase construction projects.
Step Two
AdjustaStairs™ Size Chart
Find your vertical reach height in the first column to identify the AdjustaStairs™ model that may fit your application.
| Vertical Reach Height | Recommended AdjustaStairs™ Model | Model Type |
|---|---|---|
| 4' – 6' 4" | 8-Step AdjustaStairs™ | Standard |
| 5' – 8' | 10-Step AdjustaStairs™ | Standard |
| 6' – 9' 7" | 12-Step AdjustaStairs™ | Standard |
| 7' – 11' 2" | 14-Step AdjustaStairs™ | Standard |
| 8' – 12' 9" | 16-Step AdjustaStairs™ | Standard |
| 9' – 14' 4" | 18-Step AdjustaStairs™ | Standard |
| 10' – 16' | 20-Step AdjustaStairs™ | Standard |
| 11' – 17' 2" | 22-Step AdjustaStairs™ | High-Access with truss |
| 12' – 19' 2" | 24-Step AdjustaStairs™ | High-Access with truss |
| 13' – 20' 9" | 26-Step AdjustaStairs™ | High-Access with truss |
| 14' – 22' 4" | 28-Step AdjustaStairs™ | High-Access with truss |
| 15' – 24' | 30-Step AdjustaStairs™ | High-Access with truss |
| 16' – 25' 7" | 32-Step AdjustaStairs™ | High-Access with truss |
| 17' – 27' 2" | 34-Step AdjustaStairs™ | High-Access with truss |
| 18' – 28' 9" | 36-Step AdjustaStairs™ | High-Access with truss |
| 19' – 30' 4" | 38-Step AdjustaStairs™ | High-Access with truss |
| 20' – 32' | 40-Step AdjustaStairs™ | High-Access with truss |
Jobsite Resource
Take the Size Guide to the Jobsite
Download the printable AdjustaStairs™ Size Selection Guide with the complete model chart, measuring instructions and jobsite information checklist.
Download Size Selection GuideStep Three
Standard vs. High-Access AdjustaStairs™
Vertical reach height and overall jobsite configuration help determine whether a Standard or High-Access AdjustaStairs™ model may be appropriate.
8-Step through 20-Step
Standard AdjustaStairs™
Commonly used for trenches, decks, slabs, shorter access points and lower-to-mid-height elevation changes.
22-Step through 40-Step
High-Access AdjustaStairs™
Designed for taller elevation changes, larger access requirements and extended-reach applications. These models include additional truss support.
Information Needed to Confirm Your Stair System
TPR Industrial can help estimate the appropriate AdjustaStairs™ model and confirm rental or purchase options. The following information helps us review your application:
| Jobsite Information | Why It Helps |
|---|---|
| Vertical reach height | Determines the recommended stair model |
| Available run / footprint | Helps confirm stair angle and space required |
| Desired stair width | Helps confirm the correct stair configuration |
| Upper and lower surfaces | Helps determine landing and anchoring requirements |
| Temporary or long-term use | Helps determine the most practical setup |
| Indoor or outdoor use | Helps confirm environmental and site considerations |
| Jobsite photos or drawings | Allows TPR to better understand the access area |
Need Help Choosing the Right AdjustaStairs™?
Send TPR Industrial your vertical reach height, available space and jobsite details. We can help estimate the appropriate model and provide rental or purchase options.
Or call TPR Industrial at 503-353-7676
AdjustaStairs™ model recommendations are estimates based on the information provided. Final configuration and suitability should be confirmed for the specific application and jobsite conditions.
