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Estimate the AdjustaStairs™ You Need
Choosing the right AdjustaStairs™ model starts with your required vertical reach height — the height from the lower walking surface to the upper landing or access point.
Use the chart below to estimate which AdjustaStairs™ model may be the right fit for your project. Final model selection should also consider available run, access angle, stair width, landing conditions, anchoring points, and whether the stair will be used for temporary or longer-term jobsite access.
AdjustaStairs™ are designed as height-adjustable stair access systems and are commonly used for trenches, slabs, decks, mezzanines, and changing jobsite elevations.
AdjustaStairs™ Size Chart
| Vertical Reach Height | Recommended AdjustaStairs™ Model | Notes |
|---|---|---|
| 4' – 6' 4" | 8-Step AdjustaStairs™ | Standard model |
| 5' – 8' | 10-Step AdjustaStairs™ | Standard model |
| 6' – 9' 7" | 12-Step AdjustaStairs™ | Standard model |
| 7' – 11' 2" | 14-Step AdjustaStairs™ | Standard model |
| 8' – 12' 9" | 16-Step AdjustaStairs™ | Standard model |
| 9' – 14' 4" | 18-Step AdjustaStairs™ | Standard model |
| 10' – 16' | 20-Step AdjustaStairs™ | Standard model |
| 11' – 17' 2" | 22-Step AdjustaStairs™ | High-access model with truss |
| 12' – 19' 2" | 24-Step AdjustaStairs™ | High-access model with truss |
| 13' – 20' 9" | 26-Step AdjustaStairs™ | High-access model with truss |
| 14' – 22' 4" | 28-Step AdjustaStairs™ | High-access model with truss |
| 15' – 24' | 30-Step AdjustaStairs™ | High-access model with truss |
| 16' – 25' 7" | 32-Step AdjustaStairs™ | High-access model with truss |
| 17' – 27' 2" | 34-Step AdjustaStairs™ | High-access model with truss |
| 18' – 28' 9" | 36-Step AdjustaStairs™ | High-access model with truss |
| 19' – 30' 4" | 38-Step AdjustaStairs™ | High-access model with truss |
| 20' – 32' | 40-Step AdjustaStairs™ | High-access model with truss |
Note: This chart is intended as a planning guide. For final confirmation, contact TPR Industrial with your vertical reach height, available space, required stair width, and jobsite conditions.
How to Measure Vertical Reach Height
To estimate the correct AdjustaStairs™ model, measure the vertical distance from the lower walking surface to the upper access point.
Common examples include:
| Application | Measurement Point |
|---|---|
| Trench access | Bottom of trench to top edge or landing area |
| Slab access | Lower slab to upper slab elevation |
| Deck access | Ground or lower platform to deck height |
| Mezzanine access | Floor level to mezzanine landing |
| Temporary jobsite access | Lower work area to upper work platform or structure |
For best results, measure the actual vertical rise instead of estimating from drawings alone. Jobsite conditions can change quickly, especially on excavation, concrete, and multi-phase construction projects.
Standard AdjustaStairs™ vs High-Access AdjustaStairs™
For lower to mid-height applications, standard AdjustaStairs™ models are often used for temporary access to trenches, decks, slabs, and smaller elevation changes.
For taller access needs, high-access AdjustaStairs™ models are designed for greater vertical reach and may include additional truss support depending on the model and jobsite setup.
A simple way to think about it:
| Access Type | Common Use |
|---|---|
| Standard AdjustaStairs™ | Trenches, decks, slabs, shorter access points |
| High-Access AdjustaStairs™ | Taller elevation changes, larger jobsite access needs, extended reach applications |
| H-Brace support | Added stability and higher capacity applications |
Need Help Choosing the Right AdjustaStairs™?
TPR Industrial can help you estimate the right AdjustaStairs™ model for your project.
When requesting a quote, it helps to provide:
| Information Needed | Why It Helps |
|---|---|
| Vertical reach height | Determines the recommended stair model |
| Available run / footprint | Helps confirm the stair angle and space required |
| Desired stair width | Helps confirm the right stair configuration |
| Jobsite surface | Helps determine anchoring method |
| Temporary or long-term use | Helps determine the best setup |
| Indoor or outdoor use | Helps confirm the right configuration for the environment |
Request a Quote
Not sure which AdjustaStairs™ model you need?
Contact TPR Industrial with your vertical reach height and jobsite details. We can help estimate the correct AdjustaStairs™ model and provide rental or purchase options for your project.
Call Today for a Quote: 503-353-7676
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