Free NASCLA Practice Tests (2026)
Start with the free diagnostic to see where you stand, then practice in tutor or timed mode. Full-length simulations match the real NASCLA.
Diagnostics
NASCLA Practice Test 1
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
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NASCLA Practice Test 2
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 3
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 4
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 5
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 6
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 7
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 8
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 9
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 10
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 11
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 12
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 13
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 14
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testNASCLA Practice Test 15
10 questions · 27 min10 free NASCLA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testHow these NASCLA practice tests match the real exam
The real NASCLA Accredited Examination for Commercial General Building Contractors has 125 questions and a 330-minute time limit. Question types: Multiple-choice questions on the computer, one per screen; 10 of the 125 questions are unscored pretest items. Some questions refer to a physical diagram/blueprint packet handed out at the test center. Each practice test here uses the same question formats, so you get used to how NASCLA questions are asked before test day.
The tests draw on every NASCLA content area, weighted like the official outline:
- General Requirements (about 21.7% of the exam)
- Site Construction (about 13% of the exam)
- Concrete (about 5.2% of the exam)
- Masonry (about 3.5% of the exam)
- Metals (about 5.2% of the exam)
- Wood (about 4.3% of the exam)
- Thermal and Moisture Protection (about 4.3% of the exam)
- Doors, Windows, and Glazing (about 3.5% of the exam)
- Finishes (about 4.3% of the exam)
- Mechanical and Plumbing Systems (about 5.2% of the exam)
- Electrical Systems (about 2.6% of the exam)
- Procurement and Contracting Requirements (about 27% of the exam)
Use tutor mode to see the explanation after each answer, or timed mode to practise at real exam pace. Every answer comes with an explanation of why it is right and why the other options are wrong.