Key Features
Door Jamb Accuracy The 78 inch Type 196 level is sized for standard door openings, so you can plumb jamb legs and catch bowing before the trim goes on. Adjustable Header Fit The Type 80 T extendable level adjusts from 24 inches to 40 inches, which lets you match the header width instead of guessing with a fixed-size level. Built for Daily Use Heavy-duty aluminum construction, coated measuring surfaces, and impact-protecting end caps make this level set a serious jobsite tool, not a throw-in accessory.
Overview
The Stabila 37540 Type-196 78-inch Level and Type-80 T Extendable Level Jamber Set is a professional spirit level set built for door installation and opening layout work. This is a spirit level set designed for door jamb and header installation. Model Number 37540. If you hang doors, set jambs, or need clean, repeatable plumb and level checks in residential framing and finish work, this set is built around that exact job.
The big reason this set matters is simple: door openings punish sloppy layout. The 78 inch Type 196 level is designed to fit a standard 80 inch door opening, so you can run the jamb legs and spot bowing or twist before it turns into binding doors, ugly reveals, or callbacks. That longer body gives you a more honest read than trying to piece the job together with a short level.
The second tool in the set is the Type 80 T extendable level, which adjusts from 24 inches to 40 inches. That makes it useful across the header, where opening widths vary and fixed-size levels can leave you short or force you into workarounds. Stabila includes a measuring scale on the level so you can lock it to the exact door size, which is the kind of feature that saves time when you are moving from opening to opening.
Stabila built the Type 196 with a heavy-duty aluminum profile that is stable in hand and meant for regular jobsite use. Integrated wall grips help keep the level from slipping while you mark, which matters when you are working alone and trying to hold the tool steady against finished or nearly finished surfaces. The coated measuring surfaces are there for a reason too: they let you measure accurately in different positions while being easier on delicate material.
Accuracy is the whole point of a level set like this, and this one leans hard into that. Stabila calls out its vial construction with transparent acrylic glass, precision-ground inner contours, and fluorescent vial fluid for visibility. The Type 196 also uses the brand’s locked vial installation method for long-term accuracy, with stated measuring accuracy of plus or minus 1/32 inch at 72 inches in normal and reverse position. In real terms, that means you are buying a set intended to stay trustworthy over years of use, not just look straight on day one.
For jobsite durability, you are getting electrostatic powder coating for easier cleanup and rubber end caps that help protect the profile from impact. At about 6.6 to 6.77 pounds assembled, it has enough substance to feel stable without becoming a burden when you are carrying it from room to room. This is still a long 78 inch level, so it is not a compact grab-and-go option, but that length is exactly what makes it valuable for door work.
The Stabila 37540 Type-196 78-inch Level and Type-80 T Extendable Level Jamber Set is best suited for finish carpenters, remodelers, residential contractors, and serious DIY users who want doors installed right the first time. If your work regularly includes prehung doors, jamb correction, or header checks, this set is purpose-built for that workflow. If you only need a general-purpose short level for occasional tasks, this is probably more specialized than you need. But if doors are part of your week, this set earns its keep fast.
Built Around Real Door Installation Work
This set is not a random pair of levels. It is matched to the two checks that matter most on a door opening: plumb on the jamb legs and level across the header.
- 78 inch Type 196 level fits standard 80 inch door openings
- Type 80 T extends from 24 inches to 40 inches for header work
- Designed to help eliminate bows in the door frame
Easy to Set, Easy to Read
When an opening is off, you need to see it fast and adjust without fighting the tool. The extendable header level gives you a direct fit across the opening instead of estimating with a shorter level.
- Integrated measuring scale helps lock the Type 80 T to the exact door size
- High-visibility acrylic vials with fluorescent vial fluid improve readability
- Type 196 accuracy is rated at ±1/32 inch at 72 inches in normal and reverse position
Made to Hold Up on the Job
Long levels take abuse. Stabila backs this set with the details that matter when the tool is in and out of trucks, leaned against walls, and used all day.
- Heavy-duty aluminum profile on the Type 196
- Rubber end caps help protect the frame from impact
- Electrostatic powder coating is easy to clean after jobsite use
Useful Beyond One Opening Size
The extendable level is what makes this set more flexible in the field. It lets you work across varying openings in residential construction without carrying a pile of fixed lengths.
- 24 inch to 40 inch adjustment range covers many residential door headers
- Good fit for remodel and new construction layout work
- Set combines long-jamb accuracy with adjustable cross-opening checks
What’s in the Box
- (1) Type 196 78 inch level
- (1) Type 80 T extendable level, 24 inch to 40 inch
Key Specifications
| Tool Type | Spirit level set |
|---|---|
| Main Level Length | 78 in |
| Extendable Level Range | 24 in to 40 in |
| Accuracy | ±1/32 in @ 72 in |
| Material | Aluminum |
| Weight | 6.6 lb |
| Level Type | Level set |
| Made In | Germany |
Built For
Door Installation Finish Carpentry Remodeling Residential Construction Jamb Setup Header Leveling General Contracting DIY / Hobbyist
Pro Tip
Set the Type 80 T to the exact opening width before fastening the header side solid. It is a quick way to catch taper or rack in the opening while you still have room to shim and adjust.
Warranty & Support
Lifetime against manufacturer’s defects. Tool Nut also describes this set as guaranteed to be accurate for life.
Tool Nut’s Take
Tool Nut’s Take
Stabila 37540 Type-196 78-inch Level and Type-80 T Extendable Level Jamber Set for door guys who are tired of callbacks
This is a purpose-built door installation set that solves the two checks that matter most, and it does it with the accuracy and durability Stabila is known for.
- Who it’s for: Finish carpenters, remodelers, punch-out crews, and contractors who install doors often enough to justify a dedicated jamb and header setup.
- Why it stands out: The 78 inch Type 196 handles full jamb legs properly, and the 24 inch to 40 inch Type 80 T is a smarter header tool than a fixed-length level.
- Worth knowing: This is a specialized level set. If doors are only an occasional task for you, a general-purpose level may cover more jobs for less money.
Common Questions
- What kind of tool is this? This is a spirit level set made specifically for door jamb and header installation.
- How long is the main level? The Type 196 level in this set is 78 inches long.
- How far does the extendable level adjust? The Type 80 T adjusts from 24 inches to 40 inches.
- Where is it made? The set is made in Germany.
- What accuracy is listed for the Type 196? Stabila lists the Type 196 at plus or minus 1/32 inch at 72 inches in normal and reverse position.
Reviews
There are no reviews yet.