What reading level is The 65-story treehouse?

The 65-story treehouse by Andy Griffiths is at a Level 3-4 reading level (Lexile 610L). Recommended for Lower Grades readers (Ages 5-8).

What age is The 65-story treehouse appropriate for?

The 65-story treehouse is recommended for Ages 5-8. HootRating: 8LP (Light — Physical).

What genre is The 65-story treehouse?

The 65-story treehouse is fiction — Juvenile Fiction.

Does The 65-story treehouse have any content warnings?

The 65-story treehouse has a HootRating of 8LP (Light — Physical). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is The 65-story treehouse?

The 65-story treehouse by Andy Griffiths is 377 pages.

Reviewed by HootRated editorial · Last updated July 16, 2026

The 65-story treehouse

Andy Griffiths

The 65-story treehouse

Age Rating, Reading Level & Content Guide

Time Travel Trouble!

by Andy Griffiths

Reading Level 3-4 8LP Ages 5-8 Matched

The text is written at a 3rd grade reading level, the subject matter is intended for younger children (ages 5–8), and the content is mild with minimal sensitive material.

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About This Book

Want to hear a secret? Andy and Terry's treehouse isn't just any treehouse—it's got a time machine hidden inside! But when the treehouse fails a safety inspection, they have to race through time to save it... and that's only the beginning.

Themes

Friendship Adventure Humor Fantasy World-Building

Quick Assessment

This humorous illustrated chapter book follows Andy and Terry as they embark on a time-traveling adventure to save their ever-expanding, fantastical treehouse after it fails a safety inspection. Suitable for early readers ages 5-8, the story contains playful slapstick humor and imaginative scenarios that engage young readers. Parents should note the fast-paced action and mild peril as the characters navigate their whimsical, yet occasionally risky, treehouse features.

Why we rated The 65-story treehouse 8LP

The 65-story treehouse is written at a Level 3-4 reading level with a Lexile measure of 610L across 377 pages. Strong independent readers around grade 4.5 can typically handle this book on their own; with parent or teacher support, The 65-story treehouse works for readers up to grade 5.5.

We rate The 65-story treehouse as 8LP ("Light — Physical") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the mild intensity score.

Thematically, The 65-story treehouse explores friendship, adventure, humor, and fantasy world-building — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 5-8 range — the maturity and attention span match the story's pacing.
✓ Kids drawn to stories about friendship, adventure, humor.