Linear Range
Also known as: linear, depolarized range, value range, top-down range
A top-down range of the strongest hands by equity with no bluffs mixed in — every hand wants to continue.
A linear range (also called depolarized) takes the best hands by raw equity from the top down, with no weak-bluff component. Every hand in it is happy to get money in — the range is uniformly strong-to-decent rather than split into value and air like a polarized range.
Linear construction is correct when you have a raw equity edge and want value and protection rather than fold equity from junk. The textbook preflop case is an in-position 3-bet (e.g. BTN vs CO): you 3-bet a smaller size with QQ+/AK and strong-but-dominating hands like AQ, AJs, KQs, and mid pairs, because in position those hands realize equity well as a raise and don't need to be relegated to a flat. Steal and late-position RFI ranges are also essentially linear — you open every hand with enough equity and playability, no deliberate trash.
The distinction from a merged range is subtle: linear is purely top-down by equity, while merged emphasizes value combos and thin value over speculative or blocker hands. The practical takeaway: small sizings and good position pull you toward linear; large sizings and out-of-position pressure pull you toward polarized.
Example
BTN vs CO open, 100bb. A linear 3-bet to ≈3× includes value (QQ+, AK), plus dominating value like AQs, AJs, KQs, and pairs down to ~88. There are no A5s-type pure bluffs — in position you'd rather flat your speculative hands than turn them into bluffs, so the 3-bet stays linear.